Acoustic Solutions Keeps Turning Off Acoustic Solutions Lcd Tv?

Acoustic solutions lcd tv? - acoustic solutions keeps turning off

I have a 40 "acoustic solutions 1080p LCD TV 2 weeks ago
TV works great!
but if I screen menu last few weeks and will not return again, I up.once overall and again it worked perfectly.
Well, if put on the teletext miniutes after about 3 or when the screen goes black and makes a soft static noise and the TV to channel 3 without seconds.apart Teletext after about 10, that television is enormous.
What would you do? or if you want to continue using called Argos, to be replaced?