We're huge Doctor Who fans around here. If you're not familiar with Doctor Who, it's a British science-fiction television program produced by the BBC that celebrated its 50th anniversary of broadcast yesterday, November 23rd, with a blockbuster special that brought back characters and actors from years past, simulcast all over the world. The show depicts the adventures of the Doctor, a Time Lord—a time-traveling humanoid alien. He explores the universe in his TARDIS (Time And Relative Dimension In Space), a sentient time-travelling space ship. Its exterior appears as a blue British police box, which was a common sight in Britain in 1963 when the series first aired.