Matt Smith

When Melvin tries to cancel Halloween, clever best friends Harold and George create their own spooky holiday -- and it's a huge success!

Christmas gets weird — really weird — after George and Harold go back in time to change up a few of their beloved holiday's traditions.

In this interactive special, Harold and George need your decision-making skills to stop Krupp from blowing their beloved treehouse to smithereens.

Two very different families join forces to create a new community, an us-against-the-world, cave person co-op on the most amazing farm in the history of prehistory!

Fourth-grade friends George and Harold have a shared love of pranks and comic books -- and turning their principal into an undies-wearing superhero.

The world's smartest dog and his boy host a zany late-night comedy show from a swanky penthouse, with time-traveling historical figures and a live audience.

Handy and inventive pup Tag chases adventure with her best pal, Scooch, solving problems and helping the citizens of Pawston along the way.

Best friends George and Harold — along with their classmates and tyrannical principal — are recruited for a mysterious mission in outer space.

Have no fear, “Underdog” gives the classic Underdog characters a contemporary twist and introduces the world to a brand new pack of canine superheroes: the Canine Crusaders !