If I had to make a very speculative guess, I would say that Paramount threw a red flag at CBS' direction in saying that they couldn't show Star Trek theatrically since that somehow creates conflict with their "theatrical" rights to the franchise.... or some other mumbo jumbo. I saw the screening in Greenville, SC and the theater was packed. Literally packed. If Greenville had a packed theater, I'm certain that the BOBW showing was a huge success. I just cannot see why there would be any other reason for CBS to not have more screenings.