Conversation so far:
What was going on after 1980?
Frost was one of the "Famous Five" who launched TV-am.
What was TV-am?
the station began with an unsustainable "highbrow" approach.
Frost remained a presenter after restructuring.
Who else was a famous five member?
Richard Branson and other interests.

Question: Were there other shows?
Self-contained rewrite: Were there other shows besides after 1980?