This begs the question of who now owns the Mythbusters brand? Looks like its gone to The Science Channel, which is a pity because I was hoping Adam could still bust some small myths on his youtube channel.
Well, the show was an Australian production, despite being made in America. Beyond Television Productions is the owner of the property, though Discovery Communications was the US distributor. And Discovery Communications owns The Science Channel, which is why TSC could air the show's reruns. So the franchise hasn't changed owners or distributors, it's just been moved to a different outlet.