Keeping it to 15 each made for some tough cutoffs.

1940s and 1950s
1. I Love Lucy/The Lucy-Desi Comedy Hour
2. Perry Mason
3. Bachelor Father
4. Highway Patrol
5. Alfred Hitchcock Presents
6. black-and-white Dragnet
7. The Jack Benny Program
8. Leave it to Beaver
9. The Ed Sullivan Show
10. The Real McCoys
11. The Twilight Zone
12. The George Burns and Gracie Allen Show “Burns and Allen”
13. The Adventures of Ozzie and Harriet
14. What’s My Line? (John Daly)
15. Split Personality game show (Tom Poston)

1960s
1. Petticoat Junction
2. The Andy Griffith Show- black and white seasons
3. The Beverly Hillbillies
4. The Dick Van Dyke Show
5. Dragnet ‘67
6. The Alfred Hitchcock Hour
7. Family Affair
8. I Dream of Jeannie
9. Bewitched- Dick York seasons
10. Gomer Pyle, U.S.M.C.
11. Hazel- Don DeFore seasons
12. The Munsters
13. The Addams Family
14. The Patty Duke Show
15. That Girl

1970s
1. Columbo
2. WKRP in Cincinnati
3. Fawlty Towers
4. Some Mothers Do ‘Ave ‘Em
5. The Rockford Files
6. Barney Miller
7. The Waltons
8. M*A*S*H
9. Adam-12
10. The Mary Tyler Moore Show
11. Lou Grant
12. Happy Days
13. Welcome Back, Kotter
14. Mork and Mindy
15. Ironside

1980s
1. Fame
2. $100,000 Pyramid/$25,000 Pyramid- Dick Clark versions
3. Benson
4. Newhart
5. Night Court
6. The Facts of Life
7. Family Ties
8. Matlock
9. The Wonder Years
10. My Two Dads
11. Rags to Riches
12. Diff’rent Strokes
13. The Love Boat
14. Classic Concentration (Alex Trebek)
15. Head of the Class- Howard Hesseman seasons

1990s
1. Early Edition
2. Star Trek: Deep Space Nine
3. Frasier
4. Quantum Leap
5. Mad About You
6. Coach
7. Murphy Brown
8. Touched by an Angel
9. The X-Files
10. Supermarket Sweep (David Ruprecht)
11. Wings
12. Star Trek: the Next Generation
13. Home Improvement
14. Seinfeld
15. Diagnosis Murder

2000s
1. Corner Gas- live action
2. Grand Slam (GSN tournament of game show champions)
3. Psych
4. Gilmore Girls
5. 7th Heaven
6. The Practice
7. Greed
8. Law & Order
9. Without a Trace
10. The Weakest Link (Anne Robinson- US)
11. Monk
12. Lincoln Heights
13. Everybody Loves Raymond
14. Hope & Faith
15. Reba

2010s
1. Heartland
2. The Middle
3. Blue Bloods
4. Leverage (TNT- starring Timothy Hutton)
5. Hostages
6. Designated Survivor (ABC seasons only)
7. Scorpion
8. Manifest
9. The American Bible Challenge
10. Mental Samurai
11. Once Upon a Time
12. Switched at Birth
13. 500 Questions game show
14. Rizzoli and Isles
15. Major Crimes

2020s
1. Alaska Daily
2. Accused (US)
3. The Rainmaker
4. People Puzzler
5. Trivial Pursuit (LeVar Burton)
6. All Creatures Great and Small
7. Young Sheldon
8. Found
9. Around the World in 80 Days
10. Prodigal Son
11. The Chosen
12. Wild Cards
13. High Potential
14. Hudson and Rex
15. Person, Place, or Thing

I originally left The Twilight Zone off of the 1950s top list since it just had 12 episodes of a 5 season run there. But since short run shows like Alaska Daily and Fawlty Towers are in that range for the whole series I edited in The Twilight Zone.

My list is a lot different than yours and I would guess a few others as well. Here it is:

1950s

1. Leave It To Beaver
2. The Phil Silvers Show
3. I Love Lucy
4. The Honeymooners
5. The Donna Reed Show
6. Dobie Gillis
7. Dennis The Menace
8. Ozzie And Harriet
9. Father Knows Best
10. Make Room For Daddy/Danny Thomas
11. Jack Benny Program
12. Burns and Allen
13. Bob Cummings Show/Love That Bob

1960s

1. Gilligan's Island
2. The Monkees
3. Bewitched
4. Dick Van Dyke
5. Green Acres
6. I Dream Of Jeannie
7. Get Smart
8. My Three Sons
9. Beverly Hillbillies
10. Andy Griffith
11. Family Affair
12. Petticoat Junction
13. (tie) The Addams Family/The Munsters
14. The Flying Nun
15. Car 54, Where Are You?

1970s

1. Happy Days
2. The Partridge Family
3. The Brady Bunch
4. Laverne & Shirley
5. Mork & Mindy
6. Welcome Back Kotter
7. Odd Couple
8. Three's Company
9. Here's Lucy
10. Mary Tyler Moore

1980s

1. Cosby Show
2. Family Ties
3. ALF
4. Golden Girls
5. Night Court
6. The Facts Of Life
7. Cheers
8. Punky Brewster
9. Newhart
10. Benson
11. Head Of The Class
12. Bosom Buddies
13. Webster
14. Square Pegs
15. The Dukes Of Hazzard

1990s

1. Friends
2. Married With Children
3. Mad About You
4. Frasier
5. Everybody Loves Raymond
6. Simpsons
7. Sabrina The Teenage Witch
8. Blossom
9. Empty Nest
10. Coach

2000-2025

1. Two And A Half Men
2. The Big Bang Theory
3. Young Sheldon
4. Scrubs
5. The Conners
6. Georgie & Mandy
7. How I Met Your Mother