On Wed, 08 Oct 2008 17:16:07 -0500, jim evans
wrote:

I'm about to hang one of the LED big screen TVs on my wall. To tidy
it up I decided to run the cables through the wall. When I cut a hole
in the wall I discovered it was filled with insulation. It's an
inside wall. The master bath is on the other side of the wall. Why
is an inside wall insulated?


Most likely it is for noise reduction.