Taxi, Nova, Roots, Roots: The Next Generation, M*A*S*H, yes I am just reading Wikipedia's list of 70's TV shows and quoting ones I remember from re-runs, Mission Impossible, Quincy, M.E., and The Persuaders!
I bet you could figure out the Sword of Justice's secret identity really easily. Just look for the guy who owns 300 decks of playing cards, all with the two of spades missing.
It's no wonder this show failed, though: he doesn't even have a sword. What's the point of television if it can't include a guy who runs around decapitating people while screaming "JUSTIIIIIICE!"
You mean they made a TV show about a Rich Playboy who really fights Crime at night? And he's one of the World's Greatest Detectives? And both his parents are dead? And he went through elaborate training to learn to be a crime fighter? Holy Original Idea!