It all stopped, unhooked the HDMI I have an over the air antenna installed. No snow, no sound nothing. Should have gotten a message to change source on the screen. Nothing on the screen but boxes on one side, blank on the other. Can't access the menu screen, there is simply nothing happening. Previously on 24, I mean TD's tv, when I lost signal, there would be instructions on the screen listing choices to obtain a signal. There was nothing on the screen, I tried working the source button and hitting okay hoping to hit on something, anything, but it didn't change the screen display at all. Guess we'll know if there's a signal problem when the new tv gets here. I tried the old tv various times over a two day period, nothing.