Posted by Sabrina B. @gametimegirl When Top Rank promoter Bob Arum made a deal with Showtime and sister network CBS last month to handle the Manny Pacquiao-Shane Mosley pay-per-view bout, he said he cut HBO out of the deal in order to foster broadcast network attention to boxing. Arum always had been intrigued by the potential of 116 million homes that have CBS and CBS’ relationship with premium cable network Showtime, compared to the 30 million or so homes that have HBO.