How can you watch both cards Live on 12th April!

[bzkfn]

I asked this question on the British forum but basically we do not know.

How can we watch the Cotto v Gomez and Margarito v Cintron and watch Woods v Tarver fight as well. How does the (I assume) HBO and Showtime schedule work so that fans can watch all the fights, without flicking channels. They must have a schedule?

I'll Sky+ 1, and watch the other