Welsh comedy writer Peter Baynham has written some of the UK's most iconic comedy characters' most memorable lines (Alan Partridge, Borat). He's also written for some of the most groundbreaking and savagely cutting satirical shows (The Day Today, Brass Eye), as well as creating family entertainment in the form of festive movie Arthur Christmas. Here Baynham talks about his television and film career in a programme featuring contributions from Sacha Baron Cohen and Steve Coogan.