| Year | Title | Actor | Screenwriter | Director | Producer | Role | Notes |
| 1975 | Saturday Night Live with Howard Cosell | No | Yes | No | No | | Variety series |
| The Lily Tomlin Special | No | Yes | No | No | | TV special |
| Kojak | Yes | No | No | No | Sound Man (uncredited) | Episodes: "Question of Answers Pt. 1 & Pt. 2" |
| 1976 | The Billion Dollar Bubble | Yes | No | No | No | Al Green | TV film |
| TVTV Looks at the Oscars | No | Yes | No | No | | TV special |
| TVTV: Super Bowl | No | Yes | No | No | |
| The TVTV Show | Yes | Yes | No | No | Various |
| 1977 | It Happened One Christmas | Yes | No | No | No | Harry Bailey | TV film |
| The Andros Targets | Yes | No | No | No | Gordon Hamilton | Episode: "A Currency for Murder" |
| All in the Family | Yes | No | No | No | Jim | Episode: "Mike and Gloria Meet" |
| 1978 | Laverne & Shirley | Yes | No | No | No | Greg Harris | Episode: "Bus Stop" |
| Peeping Times | No | Yes | No | No | | Television special |
| 1979 | Blind Ambition | Yes | No | No | No | Jeb Stuart Magruder | Miniseries |
| The Chevy Chase National Humor Test | Yes | Yes | No | No | Various | Television special |
| 1980 | Haywire | Yes | No | No | No | The T.V. Director | Television film |
| 1982 | Million Dollar Infield | Yes | No | No | No | Bucky Frische |
| A Piano for Mrs. Cimino | Yes | No | No | No | Philip Ryan |
| St. Elsewhere | Yes | No | No | No | Cummings | 2 episodes |
| 1984–85 | Saturday Night Live | Yes | Yes | No | No | Various | 19 episodes |
| 1986 | Shelley Duvall's Tall Tales & Legends | No | Yes | No | No | | Episode: "Johnny Appleseed" |
| 1989 | Trying Times | No | No | Yes | No | | Episode: "The Sad Professor" |
| Billy Crystal: Midnight Train toMoscow | Yes | No | No | No | The Voice | Stand-up special |
| I, Martin Short, Goes Hollywood | Yes | No | No | No | Antoninus DiMentabella | |
| 1991 | Morton & Hayes | Yes | Yes | Yes | Yes | El Supremo / Crooner /Dr. Von Astor | Directed 5 episodes; acted in 3 episodesComposed theme music |
| Amnesty International's Big 3-0 | Yes | No | No | No | Nigel Tufnel | Television special |
| 1992 | The Simpsons | Yes | No | No | No | Nigel Tufnel | Episode: "The Otto Show"Voice |
| 1993 | Animaniacs | Yes | No | No | No | Umlatt | Episode: "King Yakko"Voice |
| Attack of the 50 Ft. Woman | No | No | Yes | No | | Television film; also composer |
| 1999 | Dilbert | Yes | No | No | No | The Dupey | Episode: "The Dupey"Voice |
| 2003 | MADtv | Yes | No | No | No | Alan Barrows | Episode |
| 2007, 2021 | SpongeBob SquarePants | Yes | No | No | No | Stanley S. SquarePants / Clem Clam | 2 episodes: "Stanley S. SquarePants", "Goofy Scoopers"Voice |
| 2009 | Stonehenge: 'Tis a Magic Place | Yes | No | No | No | Nigel Tufnel | 3 episodes |
| 2012 | 84th Academy Awards | Yes | No | Yes | No | Focus Group Member | Directed focus group segment |
| 2013 | Family Tree | Yes | Yes | Yes | Yes | Dave Chadwick /Phineas Chadwick | 3 episodes; also co-creatorComposed credits theme |