We want the option of recording two different programs at the same time and watching TV from our list, will that work with what you are describing ? Thank you, Judy
Well, that really sounds more like a question about the receiver's capabilities. On my Directv HR24-500 receivers (one at home, one in the RV), I can record 2 programs at the same time. The receiver at home uses multi-switch technology with 2 wires to the receiver. The one in the RV uses SWM technology with one wire to the receiver. Both receivers have exactly the same functionality.
While recording 2 programs, I think I can also play something previously. But I cannot watch a 3rd live program while recording 2 programs. But that's not a wiring issue, it's a receiver limitation both at home and in the RV.
The key is that there are 2 tuners in the receiver (or more for some newer receivers). The wiring has to support both tuners and with SWM, one wire supports both. I think if I were to upgrade to one of the newest receivers, one wire might support up to 4 tuners, each capable of being set to a different program. In that case I could probably record 3 programs and watch a 4th.