When I with Sky+ HD for 7 years, I had no hardware or software issues, none, zilch.
Boy, do I regret cancelling Sky and moving over to BT TV.
Since August I have had the NOW TV catch up issues, which for the most part have been resolved. Now Netflix won't load which means switching the box off at the rear, restarting and hey presto, it works, until tomorrow.
As a comparison, my little Roku stick works flawlessly on Netflix, Prime and NOW TV to name a few.
I honestly think BT are in breach of contract here, as they can not deliver what is reasonably expected. SICK AND TIRED.