- The Odd Couple was, I believe, a Neil Simon play, before it became a film,
and then a sitcom.
- Robocop and Highlander are recent examples of film to TV series.
- I'm sure someone wiser than I will be able to tell you if the film of MASH
came before the sitcom. I think it did, but could be wrong.
 
Good luck with it. I hope these are of some help.
 
Best wishes,
 
 
Dan
 
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