This is the first of two mentions of Jar Jar Binks. In this episode, Howard points out that Leonard is the least successful of his siblings, and therefore the Jar Jar Binks of the Hofstadter family. In The 21-Second Excitation, Sheldon calls Wil Wheaton the Jar Jar Binks of the Star Trek universe.
In the final scene, to continue the conversation they were having earlier, Beverly asks, "So, Slugger, shall we pick up where we left off last time?". As they approach the first floor landing area, Penny says, "My mom could have just said, 'Bob, get over it; she's a girl, move on'". In The Boyfriend Complexity, Penny's father is introduced and his name is Wyatt.