Tv has always been great..Watched it this morning,turned it off and about 6hrs later turned it on and no sound...I run my cable through my vcr then to tv,so i checked the changed the audio video cables, still no sound. checked my settings in the menu and settings were all set correctly...and yes i checked to see if the tv was on mute....nope that wasnt the problem either...please help the tv is my bedroom tv and i have a four year old.