Betelgeuse V

Betelgeuse was a planet mentioned by the Fourth Doctor. When Davros revived and demanded to know what had happened while he was in suspended animation, the Doctor told him that Arcturus had won the Galactic Olympic Games with Betelgeuse coming in second. (TV: Destiny of the Daleks)

Behind the scenes
Betelgeuse was also a planet in script editor Douglas Adams' The Hitchhiker's Guide to the Galaxy series.