Six Into One: The Prisoner File.

After Channel 4 screened the finale of their 1984 repeats of The Prisoner, they broadcast this special show to delve into the mysteries about the enigmatic series. Featuring interviews from actors, writers, and directors of the show, it most importantly featured an interview with the man himself, Patrick McGoohan, then living in Canada. The story behind the making of this special was revisited in the 2017 documentary 'In My Mind'.