When Peter and the Olivia "over there" talk about the difference between universes, Peter looks at a famous comic book cover starring Green Lantern and Green Arrow, but in this alternate universe, they are Red Lantern and Red Arrow.
The movie marquee on the Other Side lists several movies playing :
Superman vs. Batman 2,
Indiana Jones and the Hex of the Hydra,
Star Wars: Legion of Droids,
Splash 7,
Smokey and the Bandit: The Final Lap and
Mask vs. Joker.
Walter is eating at alternate KFC and says on Wednesday 1983 he identified the last of the 11 herbs and spices. In 1983 William Poundstone claimed to have analyzed a sample of the seasoning and found it to contain only flour, salt, MSG, and black pepper. Since then recipes purporting to reveal the real 11 secret herbs and spices have been published.
The Observer passes behind Olivia, Walter and William Bell as they sit and talk at a fast food restaurant.
The glyphs for this episode spell out: WEISS