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Season 1 - Aug. 05, 2003
Season 2 - Nov. 04, 2004
Season 3 - Sep. 08, 2005
Season 4 - Nov. 02, 2006

The O.C. Season 1 Episode 19
HD
Overview:
It’s Valentine’s Day in Newport, and everyone is preparing for the Valentine’s singles benefit. Luke has a new crush, while Sandy gives Seth some sex advice. An old friend of Ryan’s shows up in town, which forces Marissa to lay her feelings on the table. Seth and Summer take their relationship to another level.