Vizio TV turns off with use of PS3, why?

I have a 1080p 47 inch Vizio TV, it's a great TV except at some times when I'm using my PS3 (hooked up with a really good HDMI cable) the TV will turn off. It only does it when the screen goes black on the PS3, like during a loading screen or when I quit a game. And I can't just turn turn the TV back on, I have to unplug it then turn it back on. It isn't IR interferance because I blocked the IR port and it still turns off. Please help!