I have the same ISP, and I think he meant he wanted to his get his WAN and the opt0 bridged, opt0 would either be connected to the TVboxes or the HPNA router.
802.1P would tag the VLAN34 packets who then have higher priority over regular net trafic. Ill try to make a diagram of the setup
–-->[ONT]–----------->[HPNA router]–--Internet
\
TVboxes
The ONT bridges the Fiber to Ethernet, It also only connects to 1 MAC address and only has one port that is active the rest are turned off.
The Router, which is what we are trying to replace with PFsense, does Wireless, NAT, and connects to the TV boxes through either HPNA or CAT5\6.
Currently getting the net is no issue and works quite well, the issue is trying to get the TV Multicast to connect.