Conversation so far:
When did Dean Martin's later career begin?
1974
What was one of Dean Martin's shows?
The 1974 film drama Mr. Ricco
What did the critics think of Dean Martin?
Roger Ebert of the Chicago Sun-Times gave the film one-and-a-half stars out of four.
What song did Dean Martin release?
(I Think That I Just Wrote) My First Country Song“.
Did Dean Martin release any more music?
L.A. Is My Home/Drinking Champagne

Question: What else did he do during this time?
Self-contained rewrite: What else did Dean Martin do during the 1980s?