Add Yahoo as a preferred source to see more of our stories on Google. And it's a TV legacy that O'Malley is open to revisit, as the performer previously revealed to PEOPLE. "I'm really, really proud ...

TV is packed with physical competitions for grown-ups, from America Ninja Warrior to Survivor to The Challenge. But 25 years ago, Nickelodeon debuted an action-sports competition entirely for kids: ...