“A Kind of Exile: Peggy Seeger” still exists and is listed on ITN Source. It was directed and produced by John Goldschmidt for ATV and was broadcast across most of the ITV network, including Thames and Granada. It turns out that “A Kind of Exile” was a 3-part series which profiled a different person each week. Episode 1 was about the South African cricketer Basil D’Oliveira and Episode 3 was a profile of Sir Oswald Mosley.
By the way, Peggy Seeger and Ewan MacColl appeared in one of Granada’s earliest music programmes – “The Ramblers”. This was a 5-part series broadcast in the Granada region only in June and July 1956. The Ramblers were a folk/skiffle group that featured MacColl, Peggy Seeger, Alan Lomax, Shirley Collins and others. The series is completely missing. However, some of the scripts can be viewed on the Library of Congress website.