The first episode of Doctor Who ("An Unearthly Child") is broadcast by the BBC, which is now the world's longest running science fiction drama.

Doctor Who is a British science fiction television series first broadcast by the BBC in 1963. The series, created by Sydney Newman, C. E. Webber and Donald Wilson, follows the adventures of the Doctor, an extraterrestrial being from a humanoid species known as Time Lords. The Doctor travels through…