What shows (that lasted more than a year) were set in different states? As you add titles, I will update the master list in this post - I've included many already.

** please note this is where the majority of the series took place so I Love Lucy would count for NY, not Connecticut - but Laverne & Shirley could count for both Wisconsin & California since 60+ episodes took place in California

Alabama
Any Day Now

Alaska
Men in Trees
Northern Exposure

Arizona
Alice
Hey Dude

Arkansas
Evening Shade

California
7th Heaven
Adam 12
Arrested Development
Baywatch (beginning of run)
The Beverly Hillbillies
Beverly Hills 90210
The Bold and the Beautiful
The Brady Bunch
Brothers and Sisters
California Dreams
Charlie's Angels
Charmed
Chico and the Man
CHiPs
Clueless
The Colbys
Dharma & Greg
Dragnet
Ellen
Eli Stone
Emergency!
Falcon Crest
The Fresh Prince of Bel Air
Full House
Hotel
Jake and the Fatman (part of run)
Knots Landing
LA Law
Laverne & Shirley (end of run)
Lou Grant
Major Dad (beginning of run)
Malibu, CA
Marcus Welby M.D.
Melrose Place
The Mentalist
Moesha
Monk
My Sister Sam
My Three Sons (end of run)
The O.C.
Party of Five
Phyllis
Popular
Power Rangers series
Private Practice
Psych
The Ropers
The Rookies
Sanford and Son
Santa Barbara
Saved by the Bell
Silk Stalkings
Simon and Simon
Suddenly Susan
Three's Company
Two and a Half Men
What's Happening!!

Colorado
Dr. Quinn, Medicine Woman
Dynasty
Mork & Mindy

Connecticut
Bewitched
Soap
Who's the Boss

Delaware
The Pretender

Florida
Burn Notice
Coach (end of run)
CSI: Miami
Dave's World
Empty Nest
Flamingo Road
The Golden Girls
I Dream of Jeannie
Miami Vice
Nurses

Georgia
Carter Country
Designing Women
The Dukes of Hazard
Matlock
Savannah

Hawaii
Baywatch (end of run)
The Brian Keith Show
Hawaii Five-O
Jake and the Fatman (part of run)
Magnum P.I.

Idaho

Illinois
According to Jim
Another World
As the World Turns
The Bob Newhart Show
Chicago Hope
Early Edition
Family Matters
Father Dowling Mysteries
Good Times
Guiding Light
Married With Children
Perfect Strangers
Punky Brewster
Roseanne
Valerie/Valerie's Family/The Hogan Family
Webster

Indiana
Close to Home
The Fugitive
One Day at a Time

Iowa
Double Trouble (beginning of run)

Kansas
F Troop

Kentucky

Louisiana
True Blood

Maine
Murder She Wrote

Maryland
Joan of Arcadia
Roc

Massachusetts
Ally McBeal
Boston Legal
Boston Public
Cheers
Crossing Jordan
Dawson's Creek
The Practice
Sabrina the Teenage Witch
Spenser: For Hire
St. Elsewhere
Wings

Michigan
8 Simple Rules
Home Improvement
Martin
Sister, Sister

Minnesota
Coach (beginning of run)
Little House on the Prairie
The Mary Tyler Moore Show

Mississippi
In the Heat of the Night

Missouri
The John Larroquette Show
Malcolm & Eddie

Montana

Nebraska
The Young Riders

Nevada
Bonanza
CSI
Las Vegas
Vega$

New Hampshire

New Jersey
Baretta
Charles in Charge
The Sopranos

New Mexico
Breaking Bad
In Plain Sight
Roswell

New York
All in the Family
Barney Miller
Brooklyn Bridge
Cagney & Lacey
Caroline in the City
The City
The Cosby Show
CSI: NY
The Dick Van Dyke Show
Diff'rent Strokes
Double Trouble (end of run)
Ellery Queen
Everybody Loves Raymond
The Facts of Life
Family Affair
Felicity
Friends
Futurama
General Hospital
Gossip Girl
The Honeymooners
I Love Lucy
The Jeffersons
Kojak
Mad About You
Maude
The Nanny
New York Undercover
Night Court
The Odd Couple
The Patty Duke Show
Port Charles
Rhoda
Royal Pains
Ryan's Hope
Seinfeld
Sex and the City
Spin City
Taxi
That Girl
Ugly Betty
Veronica's Closet
Welcome Back Kotter
Without a Trace
The Wizards of Waverly Place

North Carolina
The Andy Griffith Show
One Tree Hill
State of Grace

North Dakota

Ohio
3rd Rock from the Sun
The Drew Carey Show
Family Ties
Fernwood 2 Night
Hope & Faith
Mary Hartman, Mary Hartman
The New WKRP in Cincinnati
WKRP in Cincinnati

Oklahoma
The Torkelsons

Oregon
Hello Larry

Pennsylvania
All My Children
American Dreams
Boy Meets World
Cold Case
It's Always Sunny in Philadelphia
Loving
Mr. Belvedere
The Office
One Life to Live

Rhode Island
Family Guy
Providence

South Carolina

South Dakota
Deadwood

Tennessee
Filthy Rich

Texas
Beavis and Butthead
Dallas
Friday Night Lights
King of the Hill
Reba
Somerset
Texas

Utah
Touched by an Angel

Vermont
Newhart

Virginia
Criminal Minds
A Different World
Major Dad (end of run)
The Waltons

Washington
Frasier
Grey's Anatomy
Harry and the Hendersons
Twin Peaks

West Virginia

Wisconsin
Happy Days
Laverne & Shirley (beginning of run)
Life with Louie
Picket Fences
Step by Step
That 70s Show
The Young and the Restless

Wyoming
Cheyenne
The Virginian/The Men from Shiloh

Washington DC
227
Get Smart
Murphy Brown
The Scarecrow and Mrs. King
That's My Mama

International
Baa Baa Black Sheep - South Pacific
China Beach - China
Corner Gas - Saskatchewan, Canada
Daktari - Africa
Due South - Canada
Emily of New Moon - Prince Edward Island
The Flying Nun - Puerto Rico
Gilligan's Island - island in the Pacific
Hogan's Heroes - Germany
M*A*S*H - Korea
Road to Avonlea - Prince Edward Island

Early Edition- Illinois
Bewitched- Connecticut
7th Heaven- California
Corner Gas- Saskatchewan, Canada
Close to Home- Indiana
The Practice- Massachusetts
Crossing Jordan- Massachusetts
Men in Trees- Alaska
Boy Meets World- Pennsylvania
The Mentalist- California
Reba- Texas
Hope & Faith- Ohio
Without a Trace- New York

Webster - Illinois
Married with Children - Illinois
Roseanne - Illinois
Valerie/Valerie's Family/The Hogan Family - Illinois
Punky Brewster - Illinois
Chicago Hope - Illinois
Father Dowling Mysteries - Illinois (I think)
Family Matters - Illinois
Perfect Strangers - Illinois

In the Heat of the Night - Mississippi

Dukes of Hazzard - Georgia

Empty Nest - Florida
Nurses - Florida
Miami Vice - Florida

Soap - Connecticut

King of the Hill - Texas
Beavis and Butt-Head - Texas

Family Guy - Rhode Island

One Life to Live - Pennsylvania
All My Children - Pennsylvania

Family Ties - Ohio

Step by Step - Wisconsin

St. Elsewhere - Massachusetts

Kojak - New York

Cagney and Lacey - New York

Murder, She Wrote - Maine

Coach - Florida (for the final few seasons)

Magnum, P.I. - Hawaii

Jake and the Fatman - Hawaii (for S2, S3, and half of S4) and California (S1, half of S4, and S5)

That '70s Show - Wisconsin

Scarecrow and Mrs. King - Washington, D.C.

Mr. Belvedere - Pennsylvania

A Different World - Georgia

Sopranos, The - New Jersey



OVERSEAS:
China Beach - China

That's My Mama! - Washington, D.C.
227 - Washington, D.C.

One Day at a Time - Indiana

Sister, Sister - Michigan
Martin - Michigan

Roc - Maryland

Las Vegas - Nevada

My Sister Sam - California
Double Trouble - California (Season 1)
Chico and the Man - California

Double Trouble - New York (Season 2)
New York Undercover - New York
Maude - New York
Diff'rent Strokes - New York

Bonanza - Nevada

Good Times - Illinois

Spenser: For Hire - Massachusetts



Overseas:
Daktari - Africa

California
The Ropers
Three's a Crowd
Melrose Place
Knots Landing
Falcon Crest
Charlie's Angels
Marcus Welby, M.D.
The Bold and the Beautiful
My Three Sons (latter half of the run)
The Rookies
The Colbys
Hotel
CHiPs
What's Happening!!

Colorado
Dynasty

Florida
Flamingo Road

Illinois
As the World Turns
Guiding Light
Another World
Good Times

Massachusetts
Dawson's Creek

Michigan
Martin

Minnesota
Little House on the Prairie

Nevada
Vega$

New York
The Facts of Life
General Hospital
Port Charles
Diff'rent Strokes
Maude
Barney Miller
Ryan's Hope

North Carolina
One Tree Hill

Ohio
Mary Hartman, Mary Hartman
Forever Fernwood

Pennsylvania
Loving

Rhode Island
Wings

Texas
Friday Night Lights

Wisconsin
The Young and the Restless

Rhode Island
Wings


Nantucket is part of Massachusetts, not Rhode Island. You got the island part right, though ;)

Lou Grant - California
Dragnet (1950s, 1967-70, 1989, and 2003-04) - California
Adam-12 - California
Emergency! - California
Saved by the Bell - California
California Dreams - California
Baywatch - California (bulk of the run) and Hawaii (end of the run)
Mighty Morphin' Power Rangers/Power Rangers Franchise - California

Northern Exposure - Alaska

Major Dad - California **(Season 1)** and Virginia **(Seasons 2-4)**

**NOTE: Becuase the 1st season was situated at Camp Pendleton, therefore it was situated in California. While the 2nd, 3rd, and 4th seasons were situated at Camp Hollister, which was based on Marine Corps Base Quantico, which in turn was based out of Virginia. Therefore the show was based in both California and Virginia.**

Double Trouble - California (Season 1)

Actually season 1 was set in Iowa. :)

Breaking Bad-New Mexico
In Plain Sight-New Mexico

Northern Exposure - Alaska
Frasier - Washington State
Hello Larry - Oregon
The Waltons - Virginia
Charles In Charge - New Jersey

Roswell-New Mexico

Cool lists! Thanks for posting everyone!

Baretta - New Jersey

On Our Own (1994-95 Version) - Missouri
Malcolm and Eddie - Missouri
John Larroquette Show, The - Missouri

Dave's World - Florida

Touched by an Angel - Utah

Virginian, The/Men from Shiloh - Wyoming

Hey Dude - Arizona

Matlock - Georgia

Major Dad - Virginia (S2-S4)

Filthy Rich (1982-83) - Tennessee

Life with Louie - Wisconsin

Dr. Quinn, Medicine Woman - Colorado

Harry and the Hendersons - Washington (state)


Overseas:
Baa Baa Black Sheep/Black Sheep Squadron - South Pacific

State of Grace - North Carolina

Boston- Cheers
Georgia- Carter Country
Drew Carrey- Ohio
Puerto Rico- The Flying Nun at the Convent Santanco.
Seattle-Frasier
Hawaii- The Brian Keith Show

Emily Of New Moon (1998-02) The setting was on Prince Edward Island in a fictional community of Blair Water. The series was actually filmed in Malpeque, Prince Edward Island (not far from where I live).

Road To Avonlea (1990-96) The setting was also on Prince Edward Island in a fictional community of Avonlea (inspired by L.M. Montgomery's hometown of Cavendish, Prince Edward Island). The series was filmed in Uxbridge, Ontario.

Washington State- Twin Peaks
California- Simon and Simon
Wisconsin- Picket Fences

Joan of Arcadia - Maryland

The Pretender - Delaware
Call to Glory - Texas

Rhode Island- Providence (starring Melina Kanakaredies)

California- Psych (set in Santa Barbara), Santa Barbara (set in you guessed it Santa Barbara, California), Models Inc., The O.C., Popular, Private Practice, City Of Angels, Two and A Half Men, Dharma & Greg, Ellen, Suddenly Susan.

New York- Ugly Betty, General Hospital (set in Port Charles which is just outside New York City), Royal Pains (set in The Hamptons), The City (soap opera from the 90's, set in SOHO), Felicity, Gossip Girl, Will & Grace, Spin City, Sex and The City, The Nanny, Caroline In The City, Veronica's Closet.

Pennsylvania- One Life To Live, All My Children (the fictional towns of Lainview and Pine Valley Pennsylvania)

Michigan- Sister, Sister

Ohio- WKRP In Cinncinatti, The New WKRP

Connetticutt- Who's The Boss?

Vermont- Newhart

Georgia- Savannah

Washington- Frasier, Grey's Anatomy (both set in Seattle)

Wisconsin- Step By Step, The Young & The Restless (set in the fictional town of Genoa City, Wissconsin), Picket Fences

Indiana- The Five Mrs. Buchanans, Errie Indiana

Massachusetts- Ally McBeal, The Practice, Boston Legal, Boston Public, Cheers.

Illinois- Chicago Hope

Still Standing was in Illinois and Bachelor Father was in CA.

Cold Case is in Philly, Pennsylvania

Criminal Minds is in Virgina (they start and end there anyway).

Ellery Queen - NYC, NY

Burn Notice is in Miami, FL.

What shows (that lasted more than a year) were set in different states? As you add titles, I will update the master list in this post - I've included many already.

** please note this is where the majority of the series took place so I Love Lucy would count for NY, not Connecticut - but Laverne & Shirley could count for both Wisconsin & California since 60+ episodes took place in California

Alabama

Alaska
Men in Trees
Northern Exposure

Arizona
Alice
Hey Dude

Arkansas
Evening Shade

California
7th Heaven
Adam 12
Arrested Development
Baywatch (beginning of run)
The Beverly Hillbillies
Beverly Hills 90210
The Bold and the Beautiful
The Brady Bunch
California Dreams
Charlie's Angels
Chico and the Man
CHiPs
The Colbys
Dragnet
Emergency!
Falcon Crest
The Fresh Prince of Bel Air
Full House
Hotel
Jake and the Fatman (part of run)
Knots Landing
Laverne & Shirley (end of run)
Lou Grant
Major Dad (beginning of run)
Marcus Welby M.D.
Melrose Place
The Mentalist
Monk
My Sister Sam
My Three Sons (end of run)
Phyllis
Power Rangers series
The Ropers
The Rookies
Sanford and Son
Saved by the Bell
Simon and Simon
Three's Company
What's Happening!!

Colorado
Dr. Quinn, Medicine Woman
Dynasty
Mork & Mindy

Connecticut
Bewitched
Soap
Who's the Boss

Delaware

Florida
Coach (end of run)
CSI: Miami
Dave's World
Empty Nest
Flamingo Road
The Golden Girls
I Dream of Jeannie
Miami Vice
Nurses

Georgia
Carter Country
Designing Women
A Different World
The Dukes of Hazard
Matlock

Hawaii
Baywatch (end of run)
The Brian Keith Show
Hawaii Five-O
Jake and the Fatman (part of run)
Magnum P.I.

Idaho

Illinois
According to Jim
Another World
As the World Turns
The Bob Newhart Show
Chicago Hope
Early Edition
Family Matters
Father Dowling Mysteries
Good Times
Guiding Light
Married With Children
Perfect Strangers
Punky Brewster
Roseanne
Valerie/Valerie's Family/The Hogan Family
Webster

Indiana
Close to Home
One Day at a Time

Iowa
Double Trouble (beginning of run)

Kansas
F Troop

Kentucky

Louisiana

Maine
Murder She Wrote

Maryland
Joan of Arcadia
Roc

Massachusetts
Cheers
Crossing Jordan
Dawson's Creek
The Practice
Spenser: For Hire
St. Elsewhere
Wings

Michigan
8 Simple Rules
Home Improvement
Martin
Sister, Sister

Minnesota
Coach (beginning of run)
Little House on the Prairie
The Mary Tyler Moore Show

Mississippi
In the Heat of the Night

Missouri
The John Larroquette Show
Malcolm & Eddie

Montana

Nebraska

Nevada
Bonanza
CSI
Las Vegas
Vega$

New Hampshire

New Jersey
Baretta
Charles in Charge
The Sopranos

New Mexico
Breaking Bad
In Plain Sight
Roswell

New York
All in the Family
Barney Miller
Cagney & Lacey
The Cosby Show
CSI: NY
The Dick Van Dyke Show
Diff'rent Strokes
Double Trouble (end of run)
Everybody Loves Raymond
The Facts of Life
Family Affair
Friends
General Hospital
The Honeymooners
I Love Lucy
The Jeffersons
Kojak
Mad About You
Maude
The Nanny
New York Undercover
The Odd Couple
The Patty Duke Show
Port Charles
Rhoda
Ryan's Hope
Seinfeld
Taxi
That Girl
Welcome Back Kotter
Without a Trace

North Carolina
The Andy Griffith Show
One Tree Hill
State of Grace

North Dakota

Ohio
The Drew Carey Show
Family Ties
Fernwood 2 Night
Hope & Faith
Mary Hartman, Mary Hartman
WKRP in Cincinnati

Oklahoma

Oregon
Hello Larry

Pennsylvania
All My Children
American Dreams
Boy Meets World
Loving
Mr. Belvedere
The Office
One Life to Live

Rhode Island
Family Guy

South Carolina

South Dakota

Tennessee
Filthy Rich

Texas
Beavis and Butthead
Dallas
Friday Night Lights
King of the Hill
Reba

Utah
Touched by an Angel

Vermont
Newhart

Virginia
Major Dad (end of run)
The Waltons

Washington
Frasier
Harry and the Hendersons
Twin Peaks

West Virginia

Wisconsin
Happy Days
Laverne & Shirley (beginning of run)
Life with Louie
Picket Fences
Step by Step
That 70s Show
The Young and the Restless

Wyoming
The Virginian/The Men from Shiloh

Washington DC
227
Get Smart
Murphy Brown
The Scarecrow and Mrs. King
That's My Mama

Overseas
Baa Baa Black Sheep - South Pacific
China Beach - China
Corner Gas - Saskatchewan, Canada
Daktari - Africa
Emily of New Moon - Prince Edward Island
The Flying Nun - Puerto Rico
Gilligan's Island - island in the Pacific
Hogan's Heroes - Germany
M*A*S*H - Korea
Road to Avonlea - Prince Edward Island

I'm pretty sure that A Different World took place in Virgina, not Georgia.

Futurama - NYC, NY (in the year 3000, but it was still basically New York City).

New Hampshire- The Brotherhood Of Poland, NH (short-lived David E. Kelly series from CBS in the late 1990's)

New york: Brooklyn Bridge, Brooklyn South and The Wizards Of Waverly Place (i believe is set in NY).

Rhode Island: Maybe It's Me (short-lived WB series from the late 1990's)

Overseas: Due South- set in Canada i believe

California: Falcon Crest, Malibu C.A., So Little Time

Montanna: Hannah Montanna

California: Party Of Five, Charmed, Eli Stone, Malibu Shores, 2000 Malibu Road, Clueless, Moesha, L.A. Doctors, L.A. Law, Brothers & Sisters

Hawaii: One West Waikiki, Baywatch: Hawaii, North Shore

Ohio: 3rd Rock From The Sun

Massachusetts: Sabrina The Teenage Witch

Florida: The Golden Palace

Texas: Dallas, Texas, Somerst

Washington, D.C.: Capitol, D.C., The West Wing

I got a few new ones:

The short-lived 2004 NBC drama called "Hawaii" - Hawaii obviously.

The Fugitive (1963-67 version) - Indiana

Cheyenne - Wyoming

Cimmaron City - Oklahoma
Torkelsons, The - Oklahoma

Deadwood - South Dakota

Any Day Now - Alabama

Trueblood - Louisiana

Manhunter, The (it starred a pre-Black Shadow Ken Howard from 1973-74) - Idaho

Young Riders, The (1989-92) - Nebraska

Pennsylvania- It's Always Sunny In Phildelphia

California- Silk Stalkings

Florida- Miami Vice

New York- Night Court