Futurama

 was an animated series created by Matt Groening, set in the year 3000.

It featured a fictionalised version of Richard Nixon, as a villainous disembodied head. (PROSE: Tricky Dicky)

Behind the scenes

 * The Fourth Doctor appeared twice in Futurama. Also in the show, there is a disembodied head in a jar in the Hall of Presidents with a name plaque reading 'Amelia Pond' below it. There is also a deactivated Dalek among many robot parts in a later episode.