When Doggett is transported up to the roof and finds himself upside down walking along the rafters, how come his tie remains in the position you'd expect if someone were standing upright? Surely it should have been dangling down - he was the one being affected, not his clothes. But gravity doesn't seem to follow the normal rules here.
Goof: When Oliver changes the house to the landscape, Doggett and Reyes stand up from the table and walk around. While doing so, they cast shadows both above and beneath the table (impossible in itself), while the table casts no shadows at all.
How could Agent Scully get an electric shock while doing the autopsy while she's wearing latex gloves which are strong insulators?
Goof: Agent Reyes states the real Brady Bunch house is on a studio backlot. The house is a real house located at 11222 Dilling Street, Studio City, California. It is owned by the McCallister family, who built a fence around the front yard a few years ago, because the fans trespassing to peek into the Bradys' living room -- which existed only on a Paramount sound stage.
Scully: (To Doggett) Cousin Oliver -- the jinx. None of the other kids liked him. (Doggett stares at Scully, bewildered) I... may have seen an episode or two.
Dr. Rietz: Oliver? You have to understand. My life's work... the vindication of it, it's so important to me. I let it blind me. I treated you like ... a lab rat, and not a man. And 30 years ago, I left, with barely a goodbye. I am sorry for that. You can't use your power. Not ever again. I forbid it.
Oliver: I can't be alone.
Dr. Rietz: You won't be. You've got me. Can you forgive me, Oliver?
Oliver: Anthony. (Dr. Rietz laughs with happiness)
Doggett: So close, Dana. I'm sorry you don't get your proof.
Scully: Me, too. Well, maybe I've had it these past nine years. If not proof of the paranormal, then... of more important things.
Doggett: Here's hoping the TV stays off and he learns how to love the real world.
Reyes: I think you are getting the hang of this job.
Doggett: Judge, I wanna toss the house of a man who makes people magically zoom into the sky. Has something to do with electricity and poltergeists and whatnot. Yeah, that'll fly.
Michael: This guy's stonewalling. Kick the door in!
Doggett: Shut up.
Agent Doggett: Cousin Oliver? Who the hell is that?
Agent Doggett: I think I'm finally getting the hang of this job.
Agent Reyes: Are you saying he's alive?
Scully: No, he's dead as a hammer.
Agent Reyes: I was wondering why a man with no criminal record would change his name. And then I thought about the name itself Oliver Martin. It sounded familiar so I ran it.
Agent Doggett: Through what? NCIC?
Agent Reyes: No, a Brady Bunch web site. It popped right up.
Doggett: Oh, Crap.
The date mentioned on the videotape is April 4th, 1970. April 4th is the birthday of writer Vince Gilligan's girlfriend, Holly.
The house isn't really the house the Brady Bunch was filmed in. Agent Reyes made a big point of mentioning that. The real Brady Bunch house was on a hollywood backlot. This house was a figment of the guy's imagination.
Title: Sunshine Days
The title is a reference to a song that the Brady children sang in an episode of The Brady Bunch when they formed a band, called "It's A Sunshine Day".
Character: Oliver Martin
The entire episode references The Brady Bunch. The character of Oliver Martin is also likely inspired by "Cousin Oliver", a character who joined that show in the failing final season in what is considered the shark-jumping episode.