A quick survey of the house found that the smell was strongest in the TV room and then I noticed smoke coming out of the back of our entertainment unit.
I powered everything off immediately and hauled out the electronic pieces on that side of the unit which made the source of the problem either my Blu-Ray player and our DirecTV DVR.
Once we were sure what we were dealing with, I turned the power back on and then plugged both units back in. The Blu-Ray player seems fine but the DVR is now just a brick. Once that “Magic Smoke” is released, there’s no going back I’m afraid.
It’s just as well, we were trialing not using the DVR anyway (maybe it was miffed that it was being ignored?). I’m going to cancel our DirecTV tonight. This just forced my hand.
Just a warning to any other HR23-700 DirecTV DVR owners… I’m not sure what you can do to prevent this issue or what precipitated the failure of my unit but I won’t replace it. I’ll get a different brand should we go back to Satellite or Cable. I’ve never been particularly fond of the UI anyway – it’s always be slow and clunky compared to a TIVO.