Upon showing Sheldon his dorm room, President Hagemeyer mentions the room belonged to an Indian exchange student who developed a taste for barbecue. This is a reference to Raj, who constantly rebelled against his Indian dietary culture in The Big Bang Theory (2007).
This is the last appearance of Reba McEntire as June. Nothing more is mentioned about her partnership in the casino, however her Christmas lights remained.
Director Melissa Joan Hart and Taylor Spreitler (Sam) worked together in the series Melissa & Joey (2010), where they played aunt and niece, respectively.
Over time, the series used several building fronts from the Western Street section of the Warner Ranch backlot. The front of Sheldon's dorm, Hudson Hall, was a well-used facade for many decades. It can be seen in such films as The Music Man (1962) as River City's library and the police station in Rebel Without a Cause (1955).