Hanging by a Thread: The Making of Logopolis (2019)

Hanging by a Thread: The Making of Logopolis is a documentary about the production of the Doctor Who story, Logopolis, which aired in 1981. It is part of the Season 18 Blu-ray collection of Doctor Who. The documentary explores the challenges and complexities faced during the filming of the story, including the transition from Tom Baker to Peter Davison