MuchUSA was a 24-hour American music video television station co-owned by CHUM Limited and Rainbow Media Holdings Inc.. It was launched in 1994 and ended in late 2000. At its peak, MuchUSA had 24 million viewers in the United States. It was later sold and is now known as Fuse.

There are rumours of talks going on between CHUM and Turner Media Group for a re-launch of MuchUSA.