This table displays the top-rated primetime television series of the 1965–66 season as measured by Nielsen Media Research.[1]
| Rank | Program | Network | Rating | |
|---|---|---|---|---|
| 1 | Bonanza | 31.8 | ||
| 2 | Gomer Pyle, U.S.M.C. | 27.8 | ||
| 3 | The Lucy Show | 27.7 | ||
| 4 | The Red Skelton Hour | 27.6 | ||
| 5 | Batman (Thurs.) | 27.0 | ||
| 6 | The Andy Griffith Show | CBS | 26.9 | |
| 7 | Bewitched | ABC | 25.9 | |
| The Beverly Hillbillies | CBS | |||
| 9 | Hogan's Heroes | 24.9 | ||
| 10 | Batman (Wed.) | ABC | 24.7 | |
| 11 | Green Acres | CBS | 24.6 | |
| 12 | Get Smart | NBC | 24.5 | |
| 13 | The Man from U.N.C.L.E. | 24.0 | ||
| 14 | Daktari | CBS | 23.9 | |
| 15 | My Three Sons | 23.8 | ||
| 16 | The Dick Van Dyke Show | 23.6 | ||
| 17 | Walt Disney's Wonderful World of Color | NBC | 23.2 | |
| The Ed Sullivan Show | CBS | |||
| 19 | The Lawrence Welk Show | ABC | 22.4 | |
| I've Got a Secret | CBS | |||
| 21 | Petticoat Junction | 22.3 | ||
| 22 | Gilligan's Island | 22.1 | ||
| 23 | The Wild Wild West | 22.0 | ||
| The Jackie Gleason Show | ||||
| The Virginian | NBC | |||
| 26 | Daniel Boone | 21.9 | ||
| 27 | Lassie | CBS | 21.8 | |
| I Dream of Jeannie | NBC | |||
| 29 | Flipper | 21.6 | ||
| 30 | Gunsmoke | CBS | 21.3 |