I think this misses the point. An IPv4-only home network has a lot of benefits, simplifying whatever you to in it which relies on IP addresses which you'll have to handle manually in code and databases.
His scenario is really a PITA, where he's basically forced to migrate to IPv6 only because of IPTV. There might have been a solution by creating an IPv6-only VLAN just for the TV, while keeping the rest at legacy, but it's not really trivial.
IPTV with Deutsche Telekom is also a pain, because they feed it in a separate VLAN and the routers and switches need to handle IGMP messages properly (IGMP proxy, IGMP snooping).
His scenario is really a PITA, where he's basically forced to migrate to IPv6 only because of IPTV. There might have been a solution by creating an IPv6-only VLAN just for the TV, while keeping the rest at legacy, but it's not really trivial.
IPTV with Deutsche Telekom is also a pain, because they feed it in a separate VLAN and the routers and switches need to handle IGMP messages properly (IGMP proxy, IGMP snooping).