Last night while watching CBS OTA channel, light went from green to red while the signal was perfectly stable and program watchable. Toggled up one ota channel and again though watchable, light remained red. Toggled down one ota channel, and again the same. Went to one of the sat channels and light went from red to green as it should. Went back to the ota channel and all was normal from then on. Is this another bug? Has anyone else seen this?