So you had to learn IPv6 the same way you learned IPv4. The question is: was it harder ?
It seems you wanted to know IPv6 without learning it because you thought it would be the same as IPv4.
And yes the Free boxes are hard to work with if you don't want to mess with vlan and still have TV services.
I think the main difference is that when I learned IPv4, pure-v4 was sufficient. Today, you can't run a pure-v6 network; you have to deal with both. The closest you can get is NAT64, which 1. doesn't always work, and 2. is still annoying to manage. (Which sucks, because doing just v6 would be nice)
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).
