The Fish That Saved Pittsburgh (1979)

 

Directed by Gilbert Moses. Found on Tubi. Dr. J, Jonathan Winters, Jack Kehoe, Peter Isacksen, Julius Carry, Harry Shearer. 

https://en.wikipedia.org/wiki/The_Fish_That_Saved_Pittsburgh

1:16 - Network premiere promo 1982 ABC.

https://every70smovie.blogspot.com/2015/08/the-fish-that-saved-pittsburgh-1979.html

https://www.pittsburghmagazine.com/retro-review-how-the-fish-that-saved-pittsburgh-captured-a-70s-city-of-champions/