My vizio screen goes on and off while using remote. I switch it on and a few seconds it goes off even though lite on tv shows its on. Sometimes watching show , screen will shut off with power lite showing on the tv. Happening a lot in the last 2 weeks. I believe the receiver is having a problem with the channel feed. Was watching wifes sony the other night and all of a sudden it went out also and I had to play around with remote to have it come on again. She said that was the first time that happen. Everything is powered on usually but sometimes tv will completely shut off. Any suggestions?