BT will not recognise anything but a BT Supplied YouView box. You can still use YouView on the TV, but without any extra BT content. To be honest, I would not bother with it built in, as it relies on the manufacturer to keep the firmware up to date.
I'm thinking of getting a new TV and it has YouView built in. Does that mean I can login with my BT account and not have an external box. Do any of you have a TV like this and know this can be done?
My Sony Android TV has YouView and does not display any BT IPTV channels in the YouView EPG.