Sorry I said "tomorrow" -- got ahead of myself.
Saturday, yeah, which is now tomorrow...
I doubt the Bahamas exo is broadcast. But you can keep and eye on fromsport, LiveScoreHunter, all the sources on the Live Streams thread in case a webcaster finds something. It's the usual sort of schedule:

Maria Sharapova and Gisela Dulko will participate in “All-Star Tennis Weekend ” at the Atlantis, Paradise Island, Bahamas on April 16th. An exhibition match is schedule for the afternoon and both players will take part in a kid’s clinic in the morning.
For business reasons, I guess, Bahamas is on EDT (East Coast US), so figure noon is at GMT-4, 18:00 in Europe.
"That's the way the world works... right now." --Maria Sharapova at 17