I have just bought an LG TV (model LG 43UQ7500). I have tuned it via antenna, but the TV has a problem playing everything (it says "invalid service") except for 7 channels, which are public broadcast (but that shouldn't make difference - they are all DTV). The only thing that does help is turning off the TV, waiting for a few minutes and then turning it back on. Once I turn it off and then on, it stops working - except for the 7 channels. So it's a neverending process of turning it off and on to actually be able to watch the TV.
Does anybody know what could be causing this? The TV has been updated, I have set it up for my location (Czech Republic), I've tried factory reset....
Thank you for your suggestions!
