jaeger - 52 minutes ago »
Strangely my 5000 had started to default to HD even if I go through the
procedure of selecting TV then an SD station, next day HD is the default.
For some reason (maybe I did it) the timer power on was not only set to
BBC 101 but HD selected, I've changing it to TV (choices are TV, radio, HD)
Have a close look at Post 7 in this thread.
https://myhumax.org/forum/topic/shortcut-to-favorite-channels
I followed it very carefully a couple of months ago and it has been stable since then