In the early days of Monty Python's Flying Circus, the team had no idea how big the show would become, so Terry Jones wanted to capture the moment on film.

He tells Kirsty Wark he was keen to find out just what the camera could do, an early indication of his eventual role directing the Monty Python films.

This and many other home movies feature in the Home Movie Roadshow which begins on Friday 6 August at 2100 BST on BBC Two. And why do old home movies languish in attics and drawers?