I have a Samsung A frame smart TV. I get good signal on BBC 1 and 2, (90% + signal, no BER) but on all other channels I get 2000 BER and zero signal strength. Both BBC and ITV used the Oxon and bucks transmitter. Obvs, I have retuned the TV, and fully reset it etc many times! This has been going on for weeks so not weather related. Why does the 2000 BER affect only certain channels? I do have a plug in (portal TV) on one of the hdmi ports but adding or removing it doesn't make it any better.