How do I control channel changing on a Digital TV Gateway?

[aaljmlmhl]

I have a dish now and am planning to get Digital TV through the local phone company. I am currently using Dish Networks PVR. Cable does not exist in my area. I am making the change for financial reasons because of the bundled DSL package that is available.

The setup includes a centralized Digital TV gateway and 3 remotes controlling up to 3 TV from that gateway. The gateway also includes a DSL modem.

I am looking at using Snapstream on my PC for PVR duties. Problem is I don't know what I need to change channels on the gateway. I am vaguely familar with IR-Blasters, but this setup certainly uses RF since line of site is not requirement.

What do I need? I would hate to loose my PVR. One becomes sort of attached to these things as I am sure you all know.

Greg