1 AM21 with 2 HR21's- I was bored

waiting for second am21 to arrive, got bored. wondered if I could feed both dvr's with 1 am21.
to a point it will, using a manual usb switch I can point the am21to either dvr with no issues and it works fine. useful to set the inital channels up though.
don't have an auto switching one so I can't test to see if the call for a recording would cause a swap or not.

very limiting, but I was just bored.