Behind the Sofa was a series of videos included in each release of The Collection Blu-ray sets featuring cast and crew members from the show watching serials from the correspondent season.
The dalek invasion of earth
The rescue
The romans
The web planet
The chase
The time meddler
Spearhead from space
Doctor who and the silurians
The ambassadors of death
Inferno
Terror of the autons
The mind of evil
The claws of axos
Colony in space
The dæmons
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