The fight will take place at Wembley Stadium in London which takes it out of the prime time slot in the States. In the United Kingdom where Joshua is based, the fight will air on Sky Box Office pay-per-view, and on RTL in Germany where Klitschko has a multi-million dollar deal. Joshua has an exclusive American contract with Showtime, but Klitschko's U.S. deal is with rival network HBO. Per ESPN’s Dan Rafael, the basics of a deal between the two American networks are in place. But any disparity in the price each network would pay could even out in the long run because Joshua and Klitschko have a two-fight deal.
Source: Forbes April 12, 2017 15:45 UTC