It's Giants vs. Marlins tonight at 7 p.m. on NBC Bay Area!Yusmeiro Petit (2-1) takes the mound for San Francisco against Henderson Alvarez (2-3) for Miami. Be sure to follow us on Twitter as we live-tweet the game on @NBCBayArea and @GiantsCove!Because tonight's game is airing on NBC Bay Area, you can watch regularly scheduled NBC programming on TV36.Here's the Friday night primetime schedule:7:00 p.m. -- San Francisco Giants vs. Miami Marlins on NBC Bay Area 8:00 p.m. -- Dateline on TV369:00 p.m. -- Grimm on TV3610:00 p.m. -- Hannibal on NBC Bay Area For full Giants coverage, visit The Cove. Photo Credit: Getty Images