BBC Radio 1's Longest Show Ever with Chris Moyles and Comedy Dave for Comic Relief, more commonly known as The Marathon Show, was a 52 hour long broadcast by Chris Moyles and David Vitty which occurred between 16th and 18th March 2011 in order to raise money for Comic Relief. The show was broadcast live on BBC Radio 1, in sound and video on the Radio 1 website and available to watch on the BBC Red Button.