This morning, my OTA local channels worked normally. Turned TV off to go to work. When I turned the TV back on later to watch the afternoon news, the OTA channels were all gone. The Live TV tile was still there, but the mini-view would not load. When I clicked on OK, I got a black screen, no sound. Pressed the left arrow to load the guide and got nothing but a blank template.
Power cycling, system restart, rescanning channels did not help. Secret menu says the signal from the antenna is strong.
All other apps (Hulu, Netflix, et al) work fine. ONLY antenna TV is affected. What happened? How do I get my antenna channels back?