Yeah, I noticed that on my H3 as well. It's always showing the original air date of programs as the day before their actual original air date.
Up until recently, there was actually another UI glitch with the H3, where if you finished watching a recorded program and then hit the Delete button, after that all the other buttons would disappear as well, including the button to return to the main DVR menu, and you had to manually hit the DVR button on the remote to return to that screen. But now that's been fixed with a recent software update.
But for all of the gripes and issues that the H3 has, and the loss of several channels like the CW and Esquire, I'd still take the H3 over the Genie, because the UI is more appealing and 16 tuners beats out 5 any day of the week, especially when you connect multiple TVs and then suddenly find out your 5-tuner DVR only has 2 tuners left for recording programs, and conflicts ensue.