Conversation so far:
What television shows did Buster Crabbe appear in?
Buster Crabbe starred in the syndicated television series, Captain Gallant of the Foreign Legion.
How long was the show Crabbe starred in on air?
1955 to 1957
What other shows did Crabbe feature in besides Captain Gallant of the Foreign Legion?
Buster Crabbe was frequently featured in archival footage in the children's television program, The Gabby Hayes Show.
What was the name of the children's television program that Buster Crabbe was featured in?
The Gabby Hayes Show

Question: When was the Gabby Hayes Show on air?
Self-contained rewrite: When was the TV show The Gabby Hayes Show on air?