Possible Clues:

• "Jeopardy!" is one
• Movie about a 1950s scandal
• Redford directed this film, 1994
• "Twenty One" was one
• Quest for knowledge?
• 1994 film about a scandal
• '50s TV scandal genre
• E.g. The Weakest Link, University Challenge
• It has valuable questions
• ''Password'', for one