I have a customer who has Dish Network and is unwilling to switch to Direct TV. He wants to add HDTV and a PVR. I personally have a Tivo model SVR2000, mapped to a cable system and it comes with the Season Pass feature which is a feature he also wants. Can anyone tell me about the package that Dish Network offers that would give me the HDTV and the PVR. I have heard of the unit 721 with a dual tuner but cannot find anyone that has it or can tell me about it including Dish Network.Is the Dish Network PVR actually a Tivo or another brand and if so who makes it? Does their PVR have features such as Season Pass and does it have discreet codes? Can a Tivo series 2 work with a Dish Network receiver and if so has does it get its mapping program? Since I definitely need discreet codes, any suggestions on how to put together this system would be appreciated.