Black Hole
May contain traces of nut
Perhaps, but I don't recall it being mentioned before.Could unplugging HDMI be relevant - last crash had been 8 days previously when HDMI also disconnected?
There are a few things which might prevent or extend completion of the shutdown housekeeping and thereby leave the unit in "delinquent half-awake" – file errors being one.HDD not powering down when putting into standby has been noted previously after crashes.
...which is strongly indicative of disk problems or overheating.Recording two programmes at the same time seems to create a vulnerability to crashes.