Topic summary
Telerecording

Extracted from the Wikipedia article Kinescope.
Decline
Telerecording was still being used internally at the BBC in the 1980s too, to preserve copies for posterity of programs that were not necessarily of the highest importance, but which nonetheless their producers wanted to be preserved. If there were no videotape machines available on a given day, then a telerecording would be made. There is evidence to suggest that the children's magazine program Blue Peter was occasionally telerecorded as late as 1985. After this point, however, cheap domestic videotape formats such as VHS could more easily be used to keep a backup reference copy of a program.