BT always have great offers on their broadband, telephone and TV packages.
Last year in 2015 BT offered 62% off their unlimited BT broadband deal. This deal also included a £50 prepaid mastercard. They also had 50% off their Unlimited BT, this also included a £100 prepaid mastercard. Both deals were for a 12 month contract.
We expect to see more great Black Friday deals from BT this year.