Hmmm. I needed an HD upgrade to a TiVO no-HD unit so I ordered the 5-LNB dish upgrade with the HR-20. First HR-20 failed to power up. The tech had another one on his truck which worked for 3 hours before beginning to lose (as in fade to black) channels. Call to Tech Support (prompt and courteous) resulted in repeated "red button" reboots without success. Getting 3d unit in 2 business days.
Compared with my DIRECTV TiVO unit in the living room, I am not impressed by the dubious quality of this unit, nor do I like the operating system and capabilities.
Have been a loyal DirecTV customer for 8 years, but if it comes down to a choice between TiVO and DirecTV, DirecTV will lose.