Jade gets the last line of the series, shouting "Come here!"
In the scene where Beck spots a number 82 race car there is a logo beside the number 82 that is the logo for Sam & Cat.
Final episode of the series.
Beck writes that he's feeling "Lumpatious" on his PearPad. Sam and Cat attempt to get this word into the dictionary in on #Lumpatious (2014).
In one of the first scenes where Cat shows her new outfit, you can read in the lower right of the chalkboard: 'Sam & Cat - Coming Soon'. Anyway it disappears right after the opening credits.