Matt Smith popping out of a big cake. Scientific fact: Matt Smith is a bazillion times better than David Tennant.
The part in "Day of the Daleks" when Jon Pertwee delivers a heinous, Captain Kirk-level back chop to a thug from the future without spilling his drink.
In the mid-1980's it was decided that Doctor Who's level of resemblance to a rodeo clown was dangerously low.
Doctor Who celebrating its triumphant return to the airwaves by stealing jokes from Austin Powers 2: The Spy Who Shagged Me.
The Doctor mawkishly manufacturing a doofy doppelganger to bone the buxom and big-lipped Billie Piper.