This episode is the 200th of the series.
Along with Season 2's Slap Bet, this episode has the highest IMDb rating of the series.
In the scene where Louis and Tracy meet, you can see signs saying "Save the Arcadian" in the background.
When the picture of Tracy and Louis at the bar is shown, Robin can be seen in the background laughing on the left side.
The lottery reference that the mother states to Louis, is also mentioned by Ted in season 1 The Return of the Shirt.