Plans fell through for a live action "Namor" TV series in the 1950's, starring Richard Egan, plus there was interest in a 1970's TV pilot...
...that was scrubbed because of a similarity to the NBC series "Man from Atlantis" (1977), starring Patrick Duffy, licensed for publishing by Marvel Comics.
To date, Universal still controls screen rights to the "Hulk" and will only allow Marvel Studios to feature the character as part of an ensemble, rather than as the main character in a stand-alone film.
"I can't speak for the studios," said Marvel's Joe Quesada about Disney recovering screen rights to Namor from Universal.
"But as far as I know, yeah we do (have screen rights). It’s not at Fox, it’s not at Sony...Yeah."