Don't Let the Good Life Pass You By - S3-E8
Plot hole: When Janet and Michael visit Doug Forcett, they realise his lifestyle, like drinking his own urine and only eating lentils and radishes, is not the "blueprint" they imagined. However, Janet should already have known all of these details, due to knowing everything about everyone in the universe, so a) she could have told Michael this without visiting Doug, and b) she should not have been learning all this for the first time herself.
What We Owe to Each Other - S1-E6
Visible crew/equipment: You can see a crew member hand Janet a stack of papers behind her back.
Jason: I'm telling you, molotov cocktails work. Any time I had a problem and I threw a molotov cocktail...boom! Right away, I had a different problem.
Trivia: The cast were sworn to secrecy to not reveal the big twist at the end of season one. Reportedly, all the cast members were really good at keeping the secret... except Ted Danson, who couldn't help but give away the twist anytime he tried to explain the show to someone.
The Snowplow - S3-E3
Question: Is Larry Hemsworth a real person, and/or is there another Hemsworth brother?
Answer: No, he is fictional. The joke is that, despite being handsome and charming, Larry Hemsworth is so overshadowed by his brothers that nobody else has heard of him and he feels like a failure.