Historical clue formulations

• Comic response, in Variety — 2013-04-13
• "___-A-Lympics" (old TV cartoon series) — 2009-11-22
• ___ riot (very funny skit) — 2005-06-14
• ___ riot (comedy review) — 2001-07-23
• Joke response, informally — 1998-10-20