| Year | Title | Role | Notes |
| 1970–1972 | Hawaii Five-O | Anna Schreuder / Wanda Russell / Betty | 4 episodes |
| 1970 | Mission: Impossible | Midge Larson | Episode: "Homecoming" |
| Mannix | Dorothy Harker / Jill Packard | Episodes: "Only One Death to a Customer" (Season 3-Episode 20), "Figures in a Landscape" (Season 4-Episode 04) |
| Gunsmoke | Belle Clark / Donna | Episodes: "The Pack Rat", "Snow Train" (Parts 1 & 2) |
| 1971 | Cade's County | Ginny Lomax | Episode: "Homecoming" |
| The Bold Ones: The New Doctors | Rosalyn | Episode: "The Convicts" |
| 1972 | Fireball Forward | Nurse (uncredited) | TV movie |
| Bonanza | Ellen Sue Greely | Episode: "A Visit to Upright" |
| Young Dr. Kildare | Alice | Episode: "The Nature of the Beast" |
| 1972–1983 | M*A*S*H | Major Margaret "Hot Lips" Houlihan | Main castPrimetime Emmy Award for Outstanding Supporting Actress in a Comedy Series (1980, 1982)People's Choice Award for Favorite Female TV Performer (1983)Nominated – Primetime Emmy Award for Outstanding Supporting Actress in a Comedy Series (1974–79, 1981, 1983)Nominated – Golden Globe Award for Best Actress – Television Series Musical or Comedy (1980, 1982)Nominated – Golden Globe Award for Best Supporting Actress – Series, Miniseries or Television Film (1974, 1983) |
| 1972 | Love, American Style | Doris | Segment "Love and the Pick-Up Fantasy" |
| 1973 | Ironside | Sally Pearson | Episode: "Ollinger's Last Case" |
| Match Game | Herself | Game Show Participant / Celebrity Guest Star |
| Shirts/Skins | Linda Bush | TV movie |
| Love, American Style | Mary Beth Scoggins | Segment "Love and the Locksmith" |
| 1973–1979 | Pyramid | Herself | 90 episodes |
| Match Game | 51 episodes |
| The Mike Douglas Show | 6 episodes |
| 1974 | Petrocelli | Ella Knox | Episode: "By Reason of Madness" |
| The Merv Griffin Show | Herself | 1 episode |
| 1975 | The Last Day | Daisy | TV movie |
| It's a Bird... It's a Plane... It's Superman | Sydney |
| Rickles | Major Margaret "Hot Lips" Houlihan | TV special |
| The Bobby Vinton Show | Herself | 1 episode |
| Celebrity Bowling | 2 episodes |
| 1976 | Good Heavens | Maxine | Episode: "Good Neighbor Maxine" |
| 1977 | The Hostage Heart | Chris LeBlanc | TV movie |
| 1977–1978 | The Love Boat | Terry Larsen / Anoushka Mishancov | 2 episodes |
| 1979 | Supertrain | Alice Phillips | Episode: "Hail to the Chief" |
| Mirror, Mirror | Sandy McLaren | TV movie |
| Friendships, Secrets and Lies | B.J. |
| Valentine | Emily |
| 1979–1980 | Password Plus | Herself | Game Show Contestant / Celebrity Guest Star (4 episodes) |
| 1980 | The Muppet Show | 1 episode |
| The Love Tapes | Samantha Young | TV movie |
| 1981 | Cagney & Lacey | Detective Christine Cagney |
| 1982 | The Kid from Nowhere | Caroline Baker |
| Games Mother Never Taught You | Laura Bentells |
| 1983 | First Affair | Jane Simon |
| The Best Christmas Pageant Ever | Grace Bradley |
| 1984 | The Love Boat | Kathy Ross | Episode: "My Mother, My Chaperone/The Present/The Death and Life of Sir Albert Demerest/Welcome Aboard" |
| 1985 | The Execution | Marysia Walenka | TV movie |
| Sam | Samantha Flynn | TV pilot episode |
| Miracle at Moreaux | Sister Gabrielle | TV movie |
| 1986 | Dreams of Gold: The Mel Fisher Story | Deo Fisher |
| 1987 | A Christmas Calendar | Herself (Host) | TV special |
| 1988 | 14 Going on 30 | Miss Louisa Horton | TV movie |
| Dolly | LuWanda Novack | Episode: "#1.19" |
| 1989 | ABC Afterschool Special | Wanda Karpinsky | Episode: "My Dad Can't Be Crazy... Can He?" |