Turning off FiOS router radio

I have FiOS internet, TV, and phone. If I turn off the wifi radio of my verizon router (Actiontec MI424WR Rev I) so that I can use a Time Capsule's Wifi instead (which seems to output a better signal for my macbook pro) will I lose TV functionality, like DVR program data? The Time Capsule's WAN port is plugged into an LAN port on the Actiontec router.

Thanks