Mary, Joseph and Larry is a Christmas episode of Curb Your Enthusiasm that debuted on HBO on November 10, 2002.
It's December 23rd, and Larry gets up to get a midnight snack. He eats some cookies in the refrigerator. Unfortunately, those cookies were a nativity scene that Cheryl's devoutly religious sister was preparing, and being Christmas Eve, it's too late to get a replacement. Larry scrambles to find a replacement, which he does in the form of a live nativity scene at a local church. But a hair stuck in Larry's throat means no nativity scene.