Doctor Who

Doctor Who is a long-running British science fiction television program produced by the BBC about a mysterious time-travelling adventurer known as "the Doctor", who explores time and space in his TARDIS, a time machine that looks like an old police box. The program originally ran from 1963 to 1989. A TV-movie was made in 1996, and the program was successfully relaunched in 2005.

The original series aired in the US for many years on PBS stations; the seasons featuring the Fourth Doctor, Tom Baker, were rerun many times in some local markets. The new series, featuring the Tenth Doctor, David Tennant, is airing on Sci Fi.