Today to launch Science Week guests include Tomorrow's World presenter Craig Doyle with a phone-in, and Jonathan Ross with an update on last night's Comic Relief events. R 'n' B group Damage perform their new single, Trev and Simon embark on another Transmission Impossible, Toby Anstis has showbiz news in Electric Circus, and Clarissa Explains It All once again. With Zoe Ball and Jamie Theakston.