Superboy (TV)

From Superman Wiki

Superboy was a 1980s live-action television show starring John Haymes Newton as a young Superman from the first season, while Gerard Christopher replaced him for the second, third and fourth season. It depicted Superboy's adventures during his college years; his meetings with Lex Luthor and his romance with Lana Lang.

The show was eventually cancelled to make room for the next Superman show, Lois & Clark: The New Adventures of Superman.