Well, in the audience shots, anyway.
My sister and I saw tonight's show being taped on Monday and we were sitting in the third row pretty close to the center! There are two good crowd shots in every episode - one right before Dave comes out and one near the end, during a commercial break. I'm in my blue plaid western shirt, smiling like a fool and looking up at the monitors; she's on my left in a black turtleneck doing the same. It was really fun and great to see it; I've loved the show for quite a few years now. Look for me on the show tonight and live vicariously!