Hello, my name is XXXXX XXXXX I am happy to try to help you today
It looks like Sky Sports is showing it (might be subscription based)
I Know BBC1 has the rights to it in the UK this year (showed it last year as well) - know that is on tv and not on the Internet but was not sure you were aware of that possiblity
I am guessing you can also access and watch it live on the NFL site - here in the US you can and I would think you can access it in the UK as well
Looks like game itself will be shown on NBCSports.com
According to the schedule lineup
You will be able to watch the NFL game Online on the BBC
Hopefully this works for you!