TV's sound is going in and out, and does this not matter if I am watching tv live or recorded, a dvd or connected to internet. Turning off and back on helped at first, but now may have to do this a few times; so I think is a matter of time before no sound happens at all. And I am wondering if a sound bar would help? However, no reading so far tells me what is happening with the TV is only a speaker issue? Is there also some sort of sound card in a TV like there is in my PC? And money being fixed, dislike to invest in a sound bar to find out soon after a new TV will need to be purchased.