Please double check my thinking for adding a HR34 to my setup. I will be replacing a HR21 with the HR34 and also have a HR24. My existing setup isn't SWM so I know DirecTV will either replace my LNB or add a SWM multiswitch and a power inserter. My HR34 can be plugged into my router via a hardwire ethernet cable. Am I correct in thinking by plugging in one coax into the HR34 and HR24 that is all I need for Whole Home DVR and also internet capabilities for each receiver since the HR34 can bridge and the HR24has the DECA internal?