I have an 8yr old Panny 42PD25U EDTV. Sometimes on OTA broadcasts it will have no sound. Unplugging, waiting 10 secs, replugging fixes it . It also sometimes loses the ability to tune in channels - again unplugging fixes it. However the sound from inputs is not affected, only the tuner has this problem. This has been going on for a few years.
Never signs up for anything