"It was a piece of post-modern neo-dada performance art subverting the entire genre of Radio 4". iPM revisits the infamous 1986 broadcast of Midweek, which installed comic actor Arthur Mullard as presenter. A 'designed shambles' which a listener sent to the programme as her favourite piece of radio. Guests include Barry Cryer - who featured on the episode - and Libby Purves, who was the regular Midweek presenter at the time. Ed Stourton reads Your News. With Eddie Mair and Jennifer Tracey. iPM@bbc.co.uk.