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

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

Fourteen-year–old Megan and her best friend Amy spend a lot of time on the internet, posting videos of themselves and chatting with guys...

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