BT have now confirmed that people with BT Infinity and their own retail YouView box will have to subscribe to a BT TV package which start at £5/month, once the 'technical solution' (set-top box software upgrade) is in place:
Can I get BT Sport if I didnít get my YouView box directly from BT?
If you bought your YouView box from a high street retailer and not directly from BT, then BT Sport is not currently available on your TV. We are working on a solution to bring BT Sport to you.
When BT Sport is available, you will need BT Infinity and a BT TV package from BT to watch it on YouView.
Remember that BT Sport is also available to watch for free online at btsport.com and via the BT Sport app on your smartphone or tablet for all BT broadband customers.
Edited by m00head (Thu 13-Jun-13 14:06:30)