Pick the game you have to watch (and keep its replacement hot on the bench)
Every game has commercials, and those commercials are when it’s time to see what’s going on with games of lesser import. Put the remote down and keep the game you want to watch on at all times -- until it’s on a commercial break. That’s when your auxiliary game leaps to the foreground to give Game A a breather.
Games will be split across CBS, TBS, TNT, and TruTV, so plot accordingly. Before the tourney's first tip-off, save its four TV channels as favorites in your remote control. (No one wants to miss a buzzer-beater because they forgot which channel number TruTV is on.)