Ella Fitzgerald at the BBC

As a curtain-raiser to an evening of programmes marking the 50th anniversary of Abba's Eurovision Song Contest victory in Brighton, this compilation features BBC appearances by the Swedish superstars on Top of the Pops, Wogan, The Late, Late Breakfast Show and The Mike Yarwood Christmas Show. The programme also features a rare Top of the Pops performance of the song So Long from 1974, missing from the BBC archive and thought to be lost until a fan unearthed a home recording.