said by Zero:said by bohratom:7 DVRS for one family...... 
That's $119 in equipment costs alone at $17 each! YIKES!!! That's more in equipment costs than what some pay for an entire FiOS triple play - I'd hate to pay that monthly bill!
On topic: IIRC only 1 MR-DVR can be active on a single account. Your issue with all the DVRs might have occurred from trying to activate more than 1 MR-DVR on an account.
Basically, only 1 DVR needs to be the MR-DVR. After that gets the upgrade all the other DVRs will be able to access recordings from each other.
The tech is the one that activated it over the phone. I believe he enabled the 'living room' as the main MR-DVR. But, like I said, when I take the Asus out of the equation and use the Actiontec as my "internet" router, all the boxes work fine.