There are reports that the HR10's will be useless for watching DirecTV HD programming by the end of the year. Personally, I have 4 SD DirecTiVos and an HR20. The HR20 has a faster UI than the DirecTiVos. MRV on the HR20 would be nice. A way to switch to the program on the other tuner would be nice. Other than that, the biggest problem with the HR20 is my daughter-in-law comes over and tunes it to Lifetime Movie Network.
There's a difference between needing help, and just being plain ole' lazy.
"You cannot teach a man anything. You can only help him find it for himself." Galileo Galilei (1564-1642)
HR20-700 with 2 TB, HR22-100, HR22-100, HR22-100, HR23-100 all running 0x5cd and networked.