I've only caught an occational episode; but it seems like the 2 that get re-run the most is the Christmas dinner one with the drunk girl mouths off then drives the car into the house, and the boating episode where Dawson cheated.
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Jay: "Holy shit, you're the Dawson."
James Van Der Beek: "James, actually. James Van Der Beek."
Jay: "What's up with Pacey stealing Joey away from you? And if I was you, I would've drowneded his ass in the creek and shit."
James Van Der Beek: "You actually watch that show?"
Jay: "Yeah, for Joey, man. She is too fine."