The Secrets of
"Doubling Down"

by Wild Willie Westwood, with sources from all over the Web

Cartman introduces Heidi to Beyond KFC and Beyond Arby's

The Beyond Mashed Potatoes and Gravy are just regular mashed potatoes and gravy, with the potatoes already being a plant.

Heidi has begun packing lunches for herself and Cartman.

"hey hey hey, Heidi." - from Fat Albert's catchphrase, "Hey hey hey!"

Though the conditions surrounding Skankhunt42's trolling no longer exist, the girls have not made up with the boys and are still mad at them over the trolling.

The scene where Kyle enters the gym during the girls' volleyball ptactice is recycled from the similar deleted scene from "Wieners Out."

Niger - "Knee-jer."

"I felt... pushed away by society. Then this guy came along who told me all the things I wanted to hear, and I just went with it." - Heidi forgot that she was the one who called Cartman over when he lost all his electronics. She saw someone else who was pushed away by society and started a friendship with him. That developed into romanacce, and that's when he told her all the things she wanted to hear, so she wouldn't snoop into his Internet history, and she went with it..

Rihanna - Unfaithful

Cartman knocks on Token's door because there's no doorbell to be found, then rings the doorbell. Where was it hiding?

"I don't know anything, I'm just a turtle." - apparently, McConnell's head looks like a turtle's head.

Cartman is under the impression that the Blacks are a rioting family, disrespecting the flag like Trump says professional football players do the anthem, and flipping cars over as one sees during riots.

Disney references: Dumbo (pink Kyles on parade), and The Little Mermaid (Kyle rising up like Ursula did, towering over Eric and Heidi like Ursula did over Prince Eric and Ariel. Kyle holds a menorah like Ursula held King Triton's trident.)

Turner Entertainment reference: Cats Don't Dance - "Big And Loud (Part 2)" (Darla Dimple plots her revenge against Danny and the other animals)

Bebe's voice is deeper now than it was in Season 2.

It's a grave demerit for a genius girl like Heidi to not notice when she's being manipulated.

In the original airing, the Blacks' table grew big while Cartman was seeing psychedelic images of Kyle in his head. Also, Token's chair disappeared. Both these bloopers were fixed in the uncensored version uploaded later on.

Despite being vegan, Heidi did indeed gain some weight. At the end of the episode she still has that small beer-belly gut and trapezoid legs seen in overweight kids. Combine that with Cartman's persuasion (or brainwashing, as the case may be) and you have a budding female version of Cartman. I wonder if this will become the new normal for her. What will her body-building father think of his new fatty? What will the girls think?

Caitlyn Jenner is nowhere to be seen. Instead we get Vice President Mike Pence, Trump's actual running mate.