Mayweather and Pacquiao are still negotiating. One of the hold ups that was being reported was that the networks (Showtime/Mayweather & HBO/Pacquiao) couldn’t figured out how to do a joint broadcast. HBO released a statement saying don’t blame them, they aren’t holding up anything.
HBO issues a statement emphasizing that they are not standing in the way of #PacquiaoMayweather, that they stand "ready to go."
— Chris Mannix (@ChrisMannixSI) February 2, 2015
My understanding–from both sides–is that there are still significant hurdles in the fight contract that have nothing to do with networks.
— Chris Mannix (@ChrisMannixSI) February 2, 2015
So, at the moment it appears the only one who is holding up an agreement is Mayweather.