we have dishnetwork and i am now looking to run 2 tvs instead of just 1, since the wife keeps complaining about the 1 tv, and having to watch the same thing upstairs and down. i have already run new rg6 cable to both locations and we currently have the upstairs tv "mirroring" the downstairs running off of our 1 box which is the 311 single tuner? can i just go purchase one of those boxes that are dual tuners and have 2 remotes in order to watch different shows at the 2 tvs? or do i have to call and get an installer out here to get a box. thanks for any info,jim