Hello everyone, new to this forum. This might have been asked before, if so I apologize. We are at a location where we cannot get sat 82 because of the footprint, but do get 91. Our trailer has a roof mounted dish with 2 ports on the LNB, but only a single coax into the RV. Can I run 2 short coax from the LNB to a SW21 switch, use the single feed from the roof to the dual tuner receiver and split the feed with another SW21 switch, thereby using inputs sat 1 & sat 2. We want to be able to watch one channel and PVR another. I know it's possible to do with a LNB and an OTA. Just a footnote: right now I ran an extra cable from the spare output on the LNB to a connection on the side of our RV, then into sat2 input on receiver. Just want to eliminate climbing on the roof when we move. Appreciate the help.