Commercial licenses for standard cable are surprisingly reasonable per receiver (when compared to consumer) at $87.99 a month for DirecTV. Keep in mind many bars have 10+ receivers so they can show multiple events. If you scroll down, it gets ugly on specific sports packages. NFL Sunday Ticket tops out at $2680/year, compared to about $300 for consumer.
https://www.directv.com/DTVAPP/content/directv-for-business/...