Character mistake: When Neal tells Rebecca about an Indian Idol and describes the idol to her, she tells him it's the Hindu Idol of Seeta, the goddess of wealth. Actually the idol is of Goddess Laxmi.
Character mistake: Kendall signs Mr. Bitters' shirt with his own initials "KS", but his character's initials are "KK" for Kendall Knight. (00:02:45)
Character mistake: Hayley is on the phone in the car with Alex and she's holding her phone upside down.
Custody Law and Eastern European Diplomacy - S2-E18
Character mistake: Annie when giving her gifts is holding two little mini flags to cover the possible ethnicity of Shirley's baby. One is a Chinese flag and the other is Zimbabwe. Annie makes reference to the fact that the ethnic food she made is one from Ghana. She makes Ghana ethnic food but does not get the right flag for Ghana. She decorates the table with numerous flags which are also Zimbabwe.
Article Two - S5-E19
Character mistake: During Garth's Filibuster, the Marvel characters come into the Star Wars universe because Thanos is using the Infinity Gauntlet's Reality Gem to cross realities. The gem allows the wielder of the Gauntlet to MOLD reality to his desire, but an Infinity Gauntlet does not work outside it's home universe/dimension, so Thanos wouldn't be able to "jump from different realities" with it. Someone that well-versed in the Marvel Comics universe would know this.
Character mistake: When Cleveland sees Auntie Mama urinating in the toilet, we can see angle of where she is standing is totally different to where the toilet is. (00:06:50)
Character mistake: When Sue and her opponent switch sides right before her opponent smashes her racket, the score in games is 5-1. In tennis, you only switch sides when the sum of games is an odd number (4-3, 5-2, 1-0) for example.
Character mistake: When April goes to see Hank at his motel, he states her romantic feelings for him are a result of "Nightingale Syndrome," however, the Nightingale Effect is caused by the caregiver developing romantic feelings for the patient, not the other way around.
Big Brother - S3-E15
Character mistake: During "Somebody That I Used to Know," Blaine puts down his satchel. At the end of the song, he leaves the auditorium without picking it back up.
Character mistake: When Cheryl, Pam and Alan Shapiro are talking on the movie set, the store behind them has a typo: Stationary should be spelled "stationEry'. (00:10:30)