I've got a 47LB650V and at the beginning of the month the TV was upgraded to the latest firmware. The upgrade went okay, however, since then anything played through the HDMI channels, the audio goes out of sync and its frustrating, not even the audio sync settings help. I have to change from HDMI to Live TV, then back to HDMI to resync it. It happens on Bluray, Wii U and Satellite, and is very annoying. Any solutions?