Sports Bar Recommendations?

I'm trying to help the owner of a local sports bar get his TVs sorted out. He has close to two dozen TVs split between two locations (same building just different sides) which are all wired up to about 9 DirecTV boxes. He's currently unable to change the channel on each TV individually and I'm trying to assess what the cheapest solution for him would be. Would it be in his best interest to get a couple matrices, set preset channels at each box, and then just change what's routed to each TV based on what he wants at any given moment? Or should I set him up with some streaming sticks and have him sign up for a subscription to something with live sports? How is everyone else going about achieving this kind of functionality? I told him to contact DirecTV about getting a login for the business remote app but I would like to be prepared in the event that doesn't work out for him.