Visible crew/equipment: In "The Power of Madonna", just before Sue drops the Madonna CD onto Figgin's desk, a camera is briefly visible over her right shoulder.
Glee (2009)
1 visible crew/equipment mistake in The Power of Madonna - chronological order
Revealing mistake: Season 2, episode 4 (Duets): When Brittany lifts Artie from his chair and carries him to her bed, right before she puts him down, he is obviously lifting his feet to prevent them from bumping into the bedframe.
Laryngitis - S1-E18
Sue Slyvester: See, that's the problem with your generation, you're obsessed with labels. So what if you like show tunes, it doesn't mean you're gay. It just means you're awful.
More trivia for Glee
Question: Who is the narrator for the previous episode montages?
Answer: According to IMDb.com, Ian Brennan, one of the "Glee" writers and producers, is listed as the uncredited narrator voice.
Michael Albert