Have owned a bt tv box for a few months now but almost every morning I have to switch it off then back on. Strangely enough, bt sport channels seem unaffected but bbc 1 etc are always down in the morning. A bit annoying.
I have noticed recently that sometimes when I turn on my Youview box that BBC News HD is not being received but all I need to do is press Channel Up to switch to the next channel and then back using Channel Down. Have you tried doing that?
There may be a new (timing?) bug in the start up process causing this or, who knows, it may be related to the ongoing problems the BBC are having at the moment with their EPG information delivery (no information, missing or wrong series links etc).