There's an episode that begins with Kevin at a dance, which really turns out to be the end of the episode. I think he's talking about a night you never forget, or an unforgettable moment, or says something like that. And then after the opening credits, it starts from the beginning of the story, but eventually returns to that same scene (back at the school dance) by the end. (If I'm not mistaken about the sequence, but I'm pretty sure that was the basic outline of the episode). Does anyone know what episode I might be talking about? I can't remember too many other details, so any help would be appreciated.

The only episode I can think of is double double date