Saturday Night Live aired its thirty-third season, during the 2007–2008 television season on NBC. Because of the 2007–08 Writers Guild of America strike, there were only 12 episodes produced in this season instead of the usual 20, making this the shortest season in the series run and beating out both the sixth season and the thirteenth season, which had thirteen episodes. This is also the only season in SNL history not to have a new Christmas episode, since the WGA strike spanned from November 2007 to February 2008. No changes to the cast happened over the summer and everyone from last season returned. During the strike, long-time castmember Maya Rudolph left the show, as she had no contract with SNL that year. Casey Wilson, an actress and writer who frequently performs at the Upright Citizens Brigade Theater, was hired in January 2008 to fill the void, but due to the strike, did not appear on the show until they returned on February 23, 2008. On November 5, 2007, after the episode hosted by Brian Williams, the Writers Guild of America went on strike. It was announced that SNL would air its next episode on November 10, 2007, live on air, with a future episode to follow, featuring Jonah Hill and musical guest Kid Rock. However, on November 7, 2007, SNL's official website confirmed that those episodes were canceled and reruns would be seen beginning November 10, and would continue during the duration of the strike. The Rock/Winehouse show was canceled, along with the Jonah Hill/Kid Rock episode.