This table displays the top-rated primetime television series of the 1977–78 season as measured by Nielsen Media Research.[1]
| Rank | Program | Network | Rating | |
|---|---|---|---|---|
| 1 | Laverne & Shirley | 31.6 | ||
| 2 | Happy Days | 31.4 | ||
| 3 | Three's Company | 28.3 | ||
| 4 | 60 Minutes | 24.4 | ||
| Charlie's Angels | ABC | |||
| All in the Family | CBS | |||
| 7 | Little House on the Prairie | 24.1 | ||
| 8 | Alice | CBS | 23.2 | |
| M*A*S*H | ||||
| 10 | One Day at a Time | 23.0 | ||
| 11 | How the West Was Won | ABC | 22.5 | |
| 12 | Eight Is Enough | 22.2 | ||
| 13 | Soap | 22.0 | ||
| 14 | The Love Boat | 21.9 | ||
| 15 | NBC | 21.7 | ||
| 16 | Monday Night Football | ABC | 21.5 | |
| 17 | Fantasy Island | 21.4 | ||
| Barney Miller | ||||
| 19 | Project U.F.O. | NBC | 21.2 | |
| 20 | ABC | 20.8 | ||
| The Waltons | CBS | |||
| 22 | Barnaby Jones | 20.6 | ||
| 23 | Hawaii Five-O | 20.4 | ||
| 24 | ABC | 20.3 | ||
| 25 | Rhoda | CBS | 20.1 | |
| 26 | The Incredible Hulk | 19.9 | ||
| Family | ABC | |||
| Welcome Back, Kotter | ||||
| 29 | On Our Own | CBS | 19.6 | |
| 30 | The Big Event — Sunday | NBC | 19.4 |