I live in an area with perfect TV reception and the stand-alone TV reports 100% signal quality and strength on all channels. My HDR 2000T has been fine for 5 years. In the last weeks, it gives me a black screen and a warning of weak or no signal. If I turn off the box and let it cool down for an hour or so, it works perfectly on all channels and an hour or so later starts to fail, sometimes in the middle of a programme or when I switch from BBC to ITV etc. I checked the coax cables and they are all fine.
Is the box at end-of-life? Should I buy a new one and, if so, which?