Great unit, but there's always room for improvement!
I'll start with a request for a couple of small improvements to the TV Guide:
1. At the moment, you have to click "List" to change the filter every time you open the TV Guide. 9 times out of 10, I only want to see my favourite channels here, so at the moment every time I open the Guide I have to perform the same actions over and again. It would be good if the TV Guide remembered my choice, so it displayed what I selected with the "List" button every time I open the Guide.
2. The "mini TV guide" (I.e. the one you get when you click the OK or < > buttons) should also have the ability to filter, or it should just use the filter applied in the main TV Guide. This is because this guide only shows 3 channels at a time, and scrolling through channels is really painfully sluggish.
3. Improve the performance of both TV Guides - it's not unusable at the moment, but it is slow to scroll.