Visible crew/equipment: When Jazz says "oops!" the stage lights are reflected in his glasses.
The Fresh Prince of Bel-Air (1990)
1 visible crew/equipment mistake in season 2 - chronological order
Starring: Will Smith, Karyn Parsons, Alfonso Ribeiro, James Avery
The Fresh Prince Project - S1-E1
Revealing mistake: When Will staples his Malcom X poster to the wall, the wall bends back and forth for a second or two.
Vivian: Philip, when I met you, you were into James Brown.
Will: He liked James Brown?
Vivian: Even wore his hair like him.
Will: He had hair?
Trivia: Janet Hubert plays Vivian Banks, mother of Hilary Banks (Karyn Parsons). In real life, Hubert is only 10 years older than Parsons.
Answer: He's coming back from his vacation in Philadelphia.