Not ticket sales in my case. Personal Seat License (PSL) prior to new stadium build. One time up front payment of $20,000 per seat (for my seat location) for both NYG and NYJ season ticket holders. 82,000 seats X 2 teams X $5000 avg PSL = $820,000,000. That's what NYG and NYJ used to build their stadium. Teams (NFL really and it trickles down)do make huge dollars from TV, but not build a new stadium money in one year.