Willona says she has been promoted to head buyer at the boutique. She already received this promotion in Season 5 in "Willona's New Job".
Keith mentions that he and Thelma will be moving to Baker Street into an upscale apartment but there is no Baker Street in Chicago.
When JJ jokingly tells Thelma her sponge cake is the best thing she's ever made, the boom mic is visible above them.