Only one PI is needed.
There are actually only 2 SWM outputs on a SWM8. You have to use SWM splitters to get more, so with 2 cables attached, there are no outputs that need terminating. However, there ARE legacy terminals on the SWM8 that may need terminating.
I don't know anything about whole home DVR, sorry.
When this group puts their heads together, almost any problem an be solved.
Now, a question. Will the dome's controller work without a homerun coax to the antenna? I have a Vuqube Flex 2100 that requires a homerun coax from the controller to the main output on the dome. My Flex would not work with this setup. My controller would have to be up on the roof between the SWM8 and the antenna.
