For a couple seasons, there was a private subreddit where they had extracted the official streams of every NFL game, and you could just open it in a web browser and watch in full quality for free with no ads other than what was in the actual broadcast. And for a while, there was a promotion in a few European countries for free NFL Sunday Ticket access, and if you started the stream over a VPN connection into one of those countries, you could turn the VPN off and it'd continue working. Then some online magazine published the trick and it stopped working the next week.