When I turn on my TV I get a screen that says, "Welcome - connecting you to your entertainment experience... " then nothing..... I can bring up the TV Guide, I can review my saved listings on my PVR, I can hear sound from the channel that it is on, but I cannot get a live TV screen to come up at all.   Just keeps showing the above message.  Left it off for 15 minutes, came back and same thing.  I was watching TV last night, turned it off as per usual, then turned on this morning.... no physical changes at all!  What's up??