Now into its third series for Channel 4 and has proven to be hugely successful, The Big Bang Theory has been showered with awards for being the smartest and funniest TV sitcom around. Read about the band that performed the show's famous theme song, 'The History of Everything'. Find out more about the world famous university where our favourite four roommates work. This is the must-have guide to all fans of The Big Bang Theory! Timed to coincide with the DVD release extracts.