2012 was a dramatic year for TV. Many of of our favorite shows made us say "OMG" with jaw-dropping surprises and comical cameos.
Joe Biden stopped by "Parks And Recreation" to hang with Leslie Knope (Amy Poehler), the identity of the mysterious blogger Gossip Girl was finally revealed (hint: it's a guy!) and Jessa (Jemima Kirke) tied the knot with Thomas-John (Chris O'Dowd) on "Girls."
On the sadder side of things, Lane Pryce (Jared Harris) hanged himself on "Mad Men," supermom Kristina Braverman (Monica Potter) was diagnosed with cancer on "Parenthood" and Lori (Sarah Wayne Callies) died at the hand of her son on "Walking Dead."
Check out the video above for a look at 2012's biggest OMG TV moments.
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