I used to have Dish Network and took the TWC offer. I however did not give them my 2 perfectly good receivers. I bought a broke directv receiver from the flea market for 5 bucks. All they want is a receiver with a serial number. Sold both receivers for $250.00 bucks ,sold the multi switch for $15 and the lnbs for $30.00 bucks. All sold on e-bay with buy it now .
Also they gave me every channel for the first 3 months at no additional charge and a $100.00 credit.
Keep one thing in mind the sa3100hd outputs 1080i from the hd component cables. No dvi, no firewire, no rgb (except with a adapter).
This means no 720p ,and no streching of anykind using the 1080i output. You must use s-video,which works well on the digital tier,but is somewhat lacking on the analog tier. They need to start switching these boxes with the new more advanced boxes that have already been released in other cable markets (sa4200HD).