15THE GREEN HORNET
Known as the series that first introduced much of the world to Bruce Lee, "Green Hornet" was an attempt to cash in on the hit 1966 "Batman" TV series, but it was a much more serious show and audiences didn't respond to it (although they all seemed to
appreciate Lee's Kato). It was recently(ish) attempted as a film starring Seth Rogen, but we think that the show is better suited to serialization. After all, it was originally a long-running radio program before it was anything else.
The idea of a hero pretending to be a supervillain so that he could infiltrate the bad guys and secretly work with the police to bring said bad guys down is a novel concept that could translate well to a current series, especially if done a bit darker, depicting the difficult decisions you would have to face if you have to pretend to be a supervillain on a regular basis.