Cat Deeley kicks off the search for Britain's favourite dancer, as the international smash sensation So You Think You Can Dance comes to Saturday night, under the watchful eye of its esteemed judge 'Nasty' Nigel Lythgoe, AKA the original Simon Cowell. Nigel made his name as a TV super-judge on Popstars in 1999 (yep, he was responsible for Hear'Say), and now, after launching So You Think... in the US to trailblazing success, he's coming home. As head judge on the new So You Think..., he will sit alongside renowned choreographer Arlene 'Look at me now, Alesha' Phillips and a third weekly guest judge. From the initial auditions across the UK, the show follows thousands of hopefuls who turned out with their leg-warmers and the moves they hoped will impress the judging panel. They are in the running for the once-in-a-lifetime chance to dance on the Hollywood version of the show and take home the £100,000 prize. There's a Total Wipeout - Celebrity Special on at 7.15pm, in case you have a burning desire to see Danielle Lloyd snot herself on an obstacle course. Fans of Elvis might prefer to busy themselves with Elvis By The Presley's on BBC2 at 8.00pm instead.