Kaleidoscope (The Classic Television Organisation), is a nonprofit organisation that recovers and stores classic television programmes in their archive.

[1] Proceeds from such events are donated to the Royal National Lifeboat Institution.

In late 2013, ten years after Bob Monkhouse died, a large number of television and radio programmes were donated to Kaleidoscope from Monkhouse's archive.

[4] From 1993, along with the British Film Institute Kaleidoscope have been running a campaign called Missing, Believed Wiped (sometimes called: Raiders of the Lost Archive).

[5][6][7][8] The campaign has led to numerous episodes being recovered from Steptoe and Son, Dad's Army, a Dennis Potter play and more than sixty classic BBC or ITV programmes from 1957 to 1969 in the Library of Congress[5][6] The organisation was also featured in a 2015 edition of BBC television programme Inside Out which discussed the subject of missing television.