Goof: When we see Jenny waking up from her point of view, she can see her feet. But when we see her sitting in the bed, the sheet is covering her feet.
In "This Time With Feeling", when Jenny writes down the answers to the test, she skips the first question. Then later on when we see the test again, the first question has been filled in.
In this episode, when Jenny gets hit by cars and trains in tickle mode, although she doesn't get hurt, she would still get damaged. In "Dressed To Kill" Britt and Tiff were throwing her around and she was damaged.
When Jenny got the electric shock that got her stuck in Dream Mode, the Dream Chip's arrow was pointing to Off instead of On. (It pointed to Off, then On, then blew up.)
Brad has two pairs of eyebrows in a part of "This Time With Feeling," right before he says, "This is getting weird, I'm outta here."
One of the background characters in "Daydream Believer" is actually an illustration of Carlos Ramos.
Jenny: (in Texas accent, to Brad, during dreammode) Howdy, partner! Nice ten-gallon hat you got there!
Tuck: (wailing) M-Monster!
(Jenny rushes in through the wall and lifts up Tuck's bed)
Tuck: (awake) Uh, Jenn? You might want to try the door next time.
(In dream mode)
Jenny: (speaking with a distorted voice) That banana is larger than soup.
Jenny: Oh my gosh, and then I enjoyed a glass of juice for the first time - orange juice! It tasted like apple! Then Don and I sat in a hot tub, and I didn't electrocute him!
Brad: You know, Jenn, dreams are more fun to have than to hear about.
Jenny: I can turn my dream off anytime I want to. I'm in total control.
Brad: Is that why you've been jumping on desks and riding drinking fountains?
(Tuck frantically shouting gibberish, crying, and hopping on all fours for five seconds)
Brad: So, Jenny thinks you're a goat boy because she's stuck in dream mode due to an electrical accident that neither of us should know about because we weren't there?
Tuck: (smiling and pointing to his nose) Uh-huh.
This episode, which had many similarities to Dr. Seuss, coincidentally aired the day Cat in the Hat premiered.
"Himcules" is a reference to the story of the character, "Hercules".
Jenny, Don Prima: Gibberish during Jenny's first dream.
The gibberish that Jenny and Don Prima speak during Jenny's first dream is similar to the "backwards-talking" that was a staple of the dream sequences in David Lynch's 1990s TV series Twin Peaks.
Mrs. Wakeman: What do androids dream of? Electric sheep?
Philip K. Dick wrote some very classic SciFi novels in the 60s, including "Do Androids Dream of Electric Sheep?" which is better known these days by the title given to it when it was adapted for the movies years later, titled Blade Runner.
When Jenny daydreams while walking home, the town looks like old Mickey Mouse cartoons.
Jenny's daydreams where everything takes over the world looks a lot like Dr. Suess' work.
Episode Title: Daydream Believer
"Daydream Believer" was the third #1 hit of The Monkees, from 1967.