Currently, I think the only way to see them is through some specific iptv playlists.
I know for sure that selling-team and ipsatpro include BT Sport 1 HD and BT Sport 2 HD in their playlists.
But obviously I won't provide them. Just google them, or check UZIVO TEAM STREAMOVI section ;)
These pllists are with freezes unfortunately. But thnx for your feedback anyway
They work on Virgin Media. 1080i MPEG 20 Mbits, however the quality is disgraceful.
Will try these IPs and provide update if find smth ineteresting. thnx