Admiral Michael said:You're forgetting the KISS rule, Keep It Simple Stupid. I think if you were to go the Tivo way you would be stuck watching what you're recording (unless you got the Tivo it's own sat box, and if you go that route why not just get a DVR from the sat company with a dual tuner?)
Think about it!
The model he has been linking to has a Dual Tuner, so he can record two shows at once or record one and watch something else.