The electronic program guide in the 721 whales the tar out of the one in the 50_'s. You can look at 7 channels worth of guide data at once with the PIP window in the top right corner which means if you sub to HBO for example you can scroll across to the right a few times and see whats on every single channel for an entire evening save for HBO Latino with just a few presses of the right arrow. Really quick and painless to setup timers with the 721 as well as seeing program information when you cursor over programs without having to hit the info button as others have mentioned previously. Overall the GUI is much nicer in the 721 as well. It still suffers from a few strange glitches on occasion, but all in all its a pretty nice DVR. I think Dish completely missed the boat pricing it so high initially along with failing to really lower the price for so long - they could have easily sold so many more of these receivers with better marketing, better and faster software updates fixing all the bugs in a more timely manner, and way more aggressive price drops along the likes of what you typically see year to year from Nintendo, Sony, and Microsoft in the videogame console wars. I don't really care if the internet access portion is ever enabled or not as I have my PC in the same room as where i watch TV. Couple more simple fixes and the 721 should be golden.