The lab coat worn by 'Stella Zinman' is owned by actress Sarah Chalke and was worn by her in Scrubs (2001). She reveals in the commentary for this episode that the pocket protector she wears with her lab coat covers the patch that says "Dr. Elliot Reid", her character on Scrubs.
Early in the episode, Ted says "We're talking ten weeks from now. Who knows what she'll want then? I mean, do you know what you're going to want for lunch ten weeks from now?" to which Marshall responds, "Sloppy joe, shrimp cocktail, and a milkshake." Near the end of the episode, after the ten weeks have passed, Marshall is seen having a sloppy joe, shrimp cocktail, and a milkshake for lunch.
With 10 million viewers, this was the highest rated episode of the 3rd season mainly due to Britney Spears' guest-appearance.
If you start a timer when Ted says, "Go" and stop it when he says "And... date," Ted's 2 minute date lasts 2 minutes and 19 seconds. When he says, "Ooh, look at the time," it's right at the 2 minute mark.
Barney uses the statistic 8.3 seconds for how long it takes for a woman to decide if she is going to sleep with a man. This is similar to the 83% that he uses for, as Ted says earlier, all of Barney's fake statistics.