AT&T Uverse IPTV issue

[andrew_241]

I'm trying to see if I can get my Uverse DVR to access video from behind pfSense, and I've followed the directions here, but the video still freezes after about 10 seconds. I have the DVR on a separate VLAN (10 on which the 192.168.10.0/24 network runs), and it's able to communicate and pull down an IP address from the pfSense firewall/router. IGMP Proxy is enabled, and IGMP snooping is enabled for the VLAN on the Netgear switch, and the Ubiquiti switch beyond that. 'Allow IP options' is enabled on the relevant Floating and IPTV rules.

The relevant firewall rules and IGMP Proxy settings are as follows:

Is there something wrong with my pfSense configuration?

Thanks!