I have been watching Taxi's third season on DVD and realized how many times I have actually laughed out loud at the Rev. Jim Ignatowski character. So that made me wonder.....

what TV characters have made you literally laugh out loud instead of a small smile and tiny laugh?

others I can think of:
the entire cast of Seinfeld
Sophia (Golden Girls)
Roseanne & Jackie (Roseanne)
Phoebe (Friends)
Carla (Cheers)
Mork (Mork And Mindy)
Arnold (Diff'rent Strokes)

sure there are others, but those are ones that spring to immediate mind.

Rev.Jim-Taxi
The whole cast-Three's Company except Lana
Jeffery Brooks-The Ropers
JAmes Evans & JJ-Good Times
Fred Sandford & Esther-Sandford & Son
The whole cast-Seinfeld Especially Kramer
Felix-Odd Couples
Gabe Kotter-Welcome Back Kotter

Chandler Bing (Friends)
Joey Tribianni (Friends)
Ross Gellar (Friends)
Phoebe Buffay (Friends)
Monica Gellar (Friends)
Cosmo Kramer (Seinfeld)
George Costanza (Seinfeld)
Frank Barone (Everybody Loves Raymond)
Doug Heffernan (The King Of Queens)
Arthur Spooner (The King Of Queens)
Michael Kelso (That '70s Show)
Fez (That '70s Show)
Gordon "ALF" Schumway (ALF)
Terry (Pee-Wee's Playhouse)
Arnold Jackson (Diff'rent Strokes)
Joey Gladstone (Full House)
Jack McFarland (Will & Grace)
Andrew (Buffy The Vampire Slayer)
All Characters (The Simpsons)
All Characters (Family Guy)
All Characters (Futurama)

Dorothy, Rose, Blance, Sophia, and Stanley from The Golden Girls
Frasier, Niles, Martin, Roz, Daphne, Lilith, Gil, and Bebe from Frasier
Thelma, Eunice, and Iola from Mama's Family
Phoebe and Monica from Friends
Murphy, Eldin, Miles, and Corky from Murphy Brown
C.C Babcock and Niles from The Nanny
Al, Peggy, Marcy, and Kelly from Married With Children
Coach, Diane, Norm, Frasier, Lilith, Rebecca, and Carla from Cheers
Kramer and Elaine from Seinfeld
Lucy from I Love Lucy

Dan, Roseanne, & Jackie-Roseanne

Cliff & Claire-The Cosby Show

Elllen-Ellen

Al & Tim-Home Improvement

Rose-The Golden Girls

Mary & Dick-3rd Rock

Roseanne, Dan, and Jackie - Roseanne
Sophia, Dorothy, Rose and Blanche - The Golden Girls
Raymond, Debra, Marie, Frank and Robert - Everybody Loves Raymond
Ellen Degeneres - The Ellen Degeneres Show
Fran, Niles, C.C., Maxwell, Sylvia and Yetta - The Nanny
Tim, Wilson and Al - Home Improvement
Cory, Shawn, Mr. Feeney and Eric - Boy Meets World

Bender- Futurama
Eric- Boy Meets World
Lowell- Wings
Homer- Simpsons

almost everyone from Three's Company (especially Jack Tripper)

Stewie and Peter Griffen, Glen Quagmire- Family Guy

Homer Simpson-The Simpsons

Cartman- South Park

almost everyone from That 70's Show

Jessica Tate and Benson DuBois - SOAP
Danny Partridge - The Partridge Family
George Costanza - Seinfeld
Fred Sandford - Sanford & Son
Jack Tripper - Three's Company
Laverne DeFazio - Laverne & Shirley
Lucy & Ricky, Fred & Ethel - I Love Lucy
Martin Payne - Martin

Jim Ignatowski-"Taxi"
Woody Boyd-"Cheers"
Jethro Bodine-"The Beverly Hillbilies"
Archie Bunker-"All in the Family"

Everyone from Three's Company- especially Jack Tripper.
Entire Cast from 8 Simple Rules
Entire cast from the Nanny

Rev.Jim-Taxi
The whole cast-Three's Company except Lana
Jeffery Brooks-The Ropers
JAmes Evans & JJ-Good Times
Fred Sandford & Esther-Sandford & Son
The whole cast-Seinfeld Especially Kramer
Felix-Odd Couples
Gabe Kotter-Welcome Back Kotter
John Cena-WWE RAW
Steve Urkel-Family Matters
The Rock-WWE
Chris Jericho-WWE RAW
Peter & Stewie-Family Guy
John Becker-Becker
Cody Lambert-Step By Step
The whole cast-8 Simple Rules
Tim,Randy & Brad Taylor-Home Improvement
Maria-WWE RAW
The Whole Cast-South Park

Jo and Natalie(The Facts of Life)
Cliff Huxtable(The Cosby Show)
Joey Glastone(Full House)
Eric Mathews(Boy Meets World)
Alex and Steven(Family Ties)
Paul Lassiter(Spin City)
Mike Flaherty(Spin City)
Steve Urkel(Family Matters)
Chandler Bing(Friends)
Mr. Kingcade and Keith(The Partridge Family)
Joey Tribiani(Friends)
Rich(Step by Step)
Jim Ignatowski(Taxi)

Lucy from I Love Lucy (numerous)
Ethel from I Love Lucy (numerous)
Roseanne (numerous)
According to Jim (numerous)
Rodney (Halloween episode)
Jim (Taxi: that DMV driving test episode)
JJ from Good times (the meatloaf episode)
Jack Tripper (where he is high and he is dancing with a plant on his head)
In living color (numerous, but especially men on film)
Mad TV
i know there are more...