And it's still not passing the data to the TV?
Have you tried a dedicated external switch of of the ISP Modem instead of the router and see if this works?
If I understand you correctly, that's essentially the workaround that I am using, albeit thru the Netgear as switch. With the TV signals passing thru the 655, I consistently have the problem. With the Netgear set up as switch handling the TVs and the 655 hooked into one of its ports to provide a WAP, everything works. It's just the need to have the additional switch that bothers me - especially because the old switch is not gigabit-capable and the 655 is.