If you subscribe to BT sport's then it's on there and you can watch it.Its there and I watched it this afternoon.👍
I'm a BTSports subscriber but couldn't find it on any of the BTSports channels. I did a search for OURS and that came up with nothing either. You did mention BT documentaries too. Could it have been on there? I'll have to have another search.
The problem that I ( and I assume RTS) have is that :
" The BT app is only available if you have an account directly with BT, either through using their Broadband service or via Sky, for which you still have to have a BT account. BT do not make their app available to Virgin media customers. The main BT sport channels can be viewed on the VM TV Go app. "
I can watch the main BT Sport Channels on TV ( or via my TV GO app) but as I don't subscribe directly to BT, therefore I don't have an account - therefore I don't have access to the BT App and cannot watch the documentary.
HappyHammer - if you are also with Virginmedia and don't have any account with BT or SKY then I guess I must be wrong.
Hopefully it will appear on some other service or be shown on a BT Sport TV Channel at some point.