I am loving 21.8.3.RC4 on my original 500GB bolt hacked with a 3TB drive. I tried Hydra the week it was released and wasn't impressed. I downgraded and copied all my content back to it which took quite some time. But after this last update, NOW we're talkin'. I really like the new UI, although it could still use some tweaking of course, but at least it doesn't look like a Playskool toy anymore. And the best thing is it still works perfectly with cTivo. Edit: I just ordered a white Vox remote to match my Bolt. Can't wait!