Conversation so far:
What was the Mercury Theatre on the Air?
After the theatrical successes of the Mercury Theatre, CBS Radio invited Orson Welles to create a summer show. the show was called The Mercury Theatre on the Air
What did Mercury Theatre on the Air do?
The weekly hour-long show presented radio plays based on classic literary works, with original music composed and conducted by Bernard Herrmann.

Question: How did the play do?
Self-contained rewrite: How did The Mercury Theatre on the Air do?