Correction, you may have to use a DP44 switch because of the number of receivers and the type of antenna you have. The DPP technology does let you use one cable into a two-tuner receiver through a DISH approved band separator at the satellite in ports (looks like a splitter turned backwards. Diplexers are handy for the backfeed to TV2. That one cable can carry as many as three signals at one time. I have sent channel 3, the tuner 2 output from the receiver as well as bringing the satellite signal in. Ain't technology great! Pardon my English.