In the season 6 episode "A Birthday Witch" we find out that Roxie had previously dated musican Isaac Hanson before he was famous, Hanson cameos as themselves. Here's the slip-up, later on in season 6, in the episode, "Driving Mr. Goodman" Miles asks Roxie to give him driving lessons, and mentions that Roxie is from New York. How could she have dated Isaac Hanson in what I assume to have been high school or junior high when the Hanson brothers are from Tulsa Ok.