Conversation so far:
who played the father on what's happening
Bill Thomas plays Thalmus Rasulala, Mabel's ex-husband and the father of Roger and Dee in the show What's Happening!!
who played the mother on what's happening
Mabel King plays Mabel Thomas, Raj's and Dee's mother in the show What's Happening!!
when did the show What's Happening!! air
What's Happening!! is an American sitcom television series that aired on ABC from August 5, 1976, to April 28, 1979

Question: how long were the episodes
Self-contained rewrite: how long were the episodes of What's Happening!!