Rory Bremner looks back at the life and career of Mike Yarwood, master of the imitation game and one of the BBC's most successful stars of the 1970s and 80s. Yarwood captured the British public's imagination with his huge range of impressions featuring the biggest names from the world of showbiz and politics, and in his 70s heyday, his affectionate takes on the likes of Harold Wilson, Edward Heath and Denis Healey were the bridge between the 60s satire of That Was the Week That Was and the far crueller caricatures of Spitting Image in the 1980s. Rory assesses Yarwood's style, impact and legacy and shares his own favourite moments from his hero's career using archive clips and interviews that Yarwood gave over the years - often to the very people he was impersonating