The Big Bang Theory The Alien Parasite Hypothesis (2007–2019) Online

The Big Bang Theory The Alien Parasite Hypothesis (2007–2019) Online

Amy experiences strange symptoms, which she believes are signs of a flu. They include an elevated heart rate, sweaty palms, dry mouth, and localized vascular throbbing. As Penny and Bernadette were present when the symptoms began, they know that Amy doesn't have the flu: she is in lust with Penny's ex-boyfriend, Zack Johnson. As Amy and Sheldon finally come to the conclusion that Amy is feeling womanly urges for the first time in her life, Sheldon has to come to terms with what his feelings for Amy are. They also have to decide how best to satisfy Amy's new biological urges. Meanwhile, Howard and Raj get into an argument: if they were to acquire super powers, who would be the superhero and who would be the sidekick. They have to come up with a way to settle the argument.

The is a rare instance where the episode title is actually stated directly (including the word "The"), by Sheldon during the differential diagnosis.

The first Amy-centric storyline.

Sheldon states that the best number is 73. Actor Jim Parsons (Sheldon) was born in 1973.

Amy tells Zack that she wants to grab hold of his gluteus maximus and make Shakespeare's metaphorical beast with two backs. She is telling him that she wants to grab his backside (the gluteus maximus is the main muscle in the buttock) and have sex with him. The "beast with two backs" is a quotation from Shakespeare's Othello (Act 1, Scene 1).

Amy Farrah Fowler states her weight as 130 lbs.

The title refers to one of Sheldon's theories about why Amy had her symptoms.

When Sheldon and Amy Farrah Fowler are performing a differential diagnosis of her symptoms, one of the ailments listed is "Lupus".

Howard says he "will never be a sidekick." In Dr Horrible's Sing-Along Blog (2008), Simon Helberg plays the sidekick and roommate of the titular Dr Horrible.

Not only is the number 73 important marking the year actor Jim Parsons was born, this is also the 73rd episode of the show.

Bernadette only appears in 1 scene in this episode.

Amy tells Zack that she wants to grab hold of his gluteus maximus and make Shakespeare's metaphorical beast with two backs. She is telling him that she wants to grab his backside and have sex with him. The "beast with two backs" is a quotation from Shakespeare's Othello (Act 1, Scene 1).

While Sheldon and Penny are talking in the laundry room, there's a sign behind Penny on the wall that reads: "Please Keep Your Clothes On While Doing Laundry"

The first episode with the introduction of both Amy Farrah Fowler and Zachary Johnson was The Lunar Excitation season 3 episode 23. This is the first episode they meet.