Idol Curiosity/Home Is Where the Hurt Is/Aw, Shucks! - S1-E9
Continuity mistake: Home Is Where The Hurt Is: When Petunia sees the green stuff falling from the grate in the ceiling, the grate has 36 holes. Later on, when Lumpy looks down at Petunia through the grate, there are 42 holes in the grate, then it changes to 20, then back to 36. (00:11:34 - 00:12:54)