What makes a hero a hero? Is it a drive to help people in need? Superhuman powers and a cool costume? Winning a reality show? Pouring billions of dollars into a movie franchise? Or is a hero someone who records a podcast about a bunch of bad TV and movies once a week? Yes. That's it.
Sam, Val, and Gigalithic are three heroes and they're here to protect you from the worst villains imaginable: the aforementioned bad TV and movies. Maybe sometimes they'll watch something good, but it's usually an accident and doesn't make them any less heroic.