Possible Clues:

• "Caught that movie last week"
• 'Already watched that film before'
• "Already caught that movie"
• Movie suggestion veto
• 'Already watched that movie'
• "Streamed that last week"
• 'I watched that episode already'
• 'Already watched that'
• 'Already watched that one'
• Words repeated while scrolling through a Netflix list, perhaps