The Super Mario Bros.
From Army of Gnomes Wiki
These two brothers, Mario Mario and Luigi Mario, have battled all throughout the Mushroom Kingdom to fight the evil King Koopa and all of his henchmen. They were awarded from resuing the Princess so many times that they got their own TV show entitled, "The Super Mario Bros. Super Show," which was a mix of live action and cartoons. It even showed clips from upcoming Zelda cartoons! Those members of the kingdom who have been lucky enough to see all 24 episodes were saddened to hear the show had ended.
Luckily, Phil has come upon a copy of the whole series on DVD.