Equipment: 921, LNB BS1H1UP201M, line of sight for satellite 61.5 only from my apartment. Will the BS1H1UP201M, which has two coax outputs, enable the 921 to watch one channel and record another at the same time?. Can I use the 921 on Dish without paying for HD programming? Will the 921 record OTA HD programming? Any way to use the 921 for OTA programming only? I am planning on getting International channels only, and could use my 510 receiver for that. Thanks much.