When Amy says the magazine would never consider doing an article on sexy male scientists, Bernadette makes the comment, "Because no one wants to see Neil deGrasse Tyson in a wet t-shirt bend over the hood of a Porsche." Chuck Lorre's title card after the credits of this episode is a photoshopped image of Neil Degrasse Tyson standing by a Porsche in a suit with jacket and shirt open in front to reveal a muscular torso.
Movie memorabilia Items found in Dr. Lorvis' collection include Magneto's helmet from the X-men movies, Hellboy's gun, Indiana Jones' hat and whip, the robots from both Forbidden Planet (1956) and The Day the Earth Stood Still (1951), the Borg Queen's headpiece, Mr. Freeze and Batman suits from Batman & Robin (1997), Maria, the female robot from Metropolis (1927), RoboCop, Terminator, Superman costume, and a Martian from Mars Attacks! (1996).
The voice of Dr. Lorvis' mother was done by Annie O'Donnell, who previously played Amy's mother in the season 4 episode, The Desperation Emanation (2010).
The Robot from The Day the Earth Stood Still (1951) shown is the "Frontal" suit that laces up in the back. For back shots, another suit was used that laced up in the front.
Title Reference: one of Penny's clients misinterprets her flirting, falls for her and every girl that's nice to him, much to Penny's annoyance.