Matthew Kelly takes a look back at the most popular British TV programmes from 1978. Christopher Timothy and Peter Davison recall how All Creatures Great and Small made them famous, Nicholas Parsons reflects on presenting Sale of the Century, Grange Hill star Todd Carty remembers the launch of the long-running children's show, and The Sweeney producer Ted Childs recalls the end of the police drama, and a memorable cameo by Morecambe and Wise. Last in the series.