DogSpit - Yes, there was a Batman movie starring Adam West, and I can't begin to thank you emough for reminding me of it.

But, as you realized, that is not the answer. ( The movie
"Batman" was released in October 1966, nine months after the TV series started.)
Mozart - The TV show, "Adventures of Superman", has its debut on September 19, 1952. "Superman and the Mole-Men" was released on November 23, 1951, and was a sequel to "Atom Man vs. Superman", which had a release date of July 20, 1950. ("Atom Man" was actually a sequel to "Superman", released on January 5, 1948.) "Mole-Men" had the familiar George Reeves as Superman, and the earlier two had Kirk Allen. Noel Neil played Lois Lane in all three of the movies, and for part of the TV series run. So the TV series didn't spawn those movies, rather, the movies spawned the series.
I have to admit that you had me thinking that you got me, since I knew "Mole Man" was released before the answer I have. (My series is older than "Adventures of Superman".) But fortunately (for me), the Superman movies resulted in the series. I really don't like admitting that I'm
wrong in error. (

) Still, an impressive bit of research on your part.
All the above Superman information came from the Internet Movie Database, and fits in with other information I've read over the years.