The theme tune, "I Could Be So Good for You", written in 1979 by Gerard Kenny and Patricia Waterman, was sung by Dennis Waterman, was released on 13 October 1980. The writing credit of Kenny/Waterman often lead people to mis-credit Dennis as co-writer. The record reached No.3 in the UK charts in November 1980 and led Waterman to tour as a singer. Dennis Waterman also sang the theme songs to other programmes he starred in, including "On the Up", "Stay Lucky", and "New Tricks", and this led to a parody in "Little Britain" where Dennis Waterman played by David Walliams is offered acting work; he always assumes he will also "write the theme tune, sing the theme tune...".