Sound not clear, fuzzy on my TV. How do I fix it?

[Sbrooks]

The sound on my TV, Magnavox RR1930, has gotten fuzzy sounding. I can still listen and hear what's going on during shows, etc, but it is getting worse. How can I fix it? I have checked connections. I have xfinity. Haven't called them, as I don't think the problem is on their end. Have another TV in the house hooked up to the same service. Thanks for any info.

Don't know if I have Digital. Had to check a box.

 

[mrtired]

Does it occur when using an input (like for DVD or a game)? Have you tried unplugging power from the cable box and resetting it? A blown audio amp is awfully rare; a Comcast box with a bad amp is very common.