I have another problem that I just realized my mom has Dish Network and planned on upgrading to their dual tuner 625 DVR. She currently has two older model receivers (non dvr) but thought she might replace both of them with just the 625, one tuner going to each tv. The problem this creates is that it comes with two remotes one IR and one RF to control the two tuners if they used in a dual mode installation, when used in this mode it has a UFH antenna (plugs into the back of the receiver) to control the Dish RF remote.

She's already using a MX-500 to control one tv and I was adding a second one to control the other one. I know the MX-500 can't learn from the Dish RF remote but could something like a MX-350 do this or is it impossible to learn commands from a RF remote?

I guess I'm wondering if we will have to give up on this idea of using one dual tuner dvr going to two different tvs?