The H20 isn't out yet. That being said the H10 has been a dog, we'll see how the current firmware update works but DirTV really dumbed down the H10, failing to integrate innovations in previous HD receivers from LG and Samsung. The H10 and, I assume the H20, are lowest cost, lowest common denominator receivers. DirTV stifled innovation when they brought design in-house.
There has been issues with every HD box they've ever released, from the DTC-100, TU-HDS20, H8, H86, DST3000, SR-HD5, SAT-HD100, 200, 300, SIR-TS 160, 360, LG3200, Zenith HD1080i and 520, HD_HTL, H10.......most have had successful upgrades, but it takes time.