Doctor Who, the longest running science fiction series ever created (1963-1989), is one of the greatest television programs ever to come out of Great Britain. In the United States, the show became increasingly popular in the 1980's with a solid run on many PBS television stations. Its popularity is worldwide as the series has spawned countless toys, books, audio adventures, and merchandise throughout the globe. The show features countless planets and aliens, including those fanatical Daleks, a race of xenophobic aliens bent on conquering the universe. So incredible is the Daleks' appeal, they even have their own entry in the Oxford English Dictionary and they have made their way onto a UK postage stamp as one of the enduring icons of the 20th century.