The powers: For him: Superman,the usual strength/speed/flight/super-everything. For her: Moxie, reporter's instinct, and, in one episode, Superman's skills.
The actors: Dean Cain and Teri Hatcher
The run: 1993-1997
The villains: Lex Luthor, Tempus, mad scientists, Kryptonians, romantic rivals
The tone: Half superhero show, half screwball romantic comedy
Of note: The show pulled a bait-and-switch on the marriage of Lois and Clark so many times that when they finally did tie the knot, the episode was titled "Swear To God, This Time We're Not Kidding." And the show runners convinced DC comics to delay their own wedding issue to coincide with the show, even though they weren't affiliated with the show.