Conversation so far:
What was popular about stirling Moss?
Moss was one of the most recognised celebrities in Britain, leading to many media appearances.
What was he recogonized for?
In March 1958, Moss was a guest challenger on the TV panel show What's My Line?
(episode with Anita Ekberg).

Question: What appearances did he make?
Self-contained rewrite: What appearances did Stirling Moss make?