TV series — number of episodes (1949-2026)
Measure: number of episodes, unit: episodes.
| # | Name | episodes |
|---|---|---|
| 1 | The Simpsons | 809 |
| 2 | Gunsmoke | 635 |
| 3 | Law & Order: Special Victims Unit | 594 |
| 4 | Lassie | 591 |
| 5 | Law & Order | 544 |
| 6 | NCIS | 507 |
| 7 | Grey's Anatomy | 466 |
| 8 | Family Guy | 461 |
| 9 | The Adventures of Ozzie and Harriet | 435 |
| 10 | Bonanza | 431 |
| 11 | American Dad! | 399 |
| 12 | My Three Sons | 380 |
| 13 | Criminal Minds | 364 |
| 14 | Dallas | 357 |
| 15 | Knots Landing | 344 |
| 16 | CSI: Crime Scene Investigation | 337 |
| 17 | Supernatural | 327 |
| 18 | NCIS: Los Angeles | 323 |
| 19 | Bob's Burgers | 313 |
| 20 | Chicago Fire | 295 |
| 21 | Blue Bloods | 293 |
| 22 | Hawaii Five-O | 282 |
| 23 | King of the Hill | 279 |
| 24 | The Big Bang Theory | 279 |
| 25 | Chicago P.D. | 264 |
| 26 | Murder, She Wrote | 264 |
| 27 | Two and a Half Men | 262 |
| 28 | The Jack Benny Program | 261 |
| 29 | NYPD Blue | 261 |
| 30 | Bones | 246 |
Source and method
Source: Wikipedia · List of longest-running scripted American primetime television series, retrieved 2026-09-11.
Every entry carries its own source link. This list was compiled from the source, not written by hand.
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