I just got Fios last week and have 2 DVR's and 1 STB. When I go to my DVR's in the menu I have 2 unnamed DVR's plus my 2 named DVR's. The 2 unnamed DVR's shouldn't even be there. I wouldn't care too much but it takes long to get to one of my real DVR's because it's at the bottom of the list. It takes about 10 seconds to cycle down to the next DVR because the unnamed DVR's are causing a long pause because the menu is having trouble locating them. I have the new Cisco boxes.
If you are having an issue with your Verizon service, you can use the Verizon Troubleshooter to fix and report issues with your Verizon Phone, FiOS TV, or Internet Service. You can also schedule a repair. Here is the link: http://www.verizon.com/repair