Historical clue formulations

• Film composer Clausen and others — 2012-04-21
• Film composer Clausen and others — 2009-10-16
• Melmac alien et al. — 2006-06-25
• NBC sitcom showings of the late 1980's — 2003-09-20
• Gov. Landon and others — 2001-03-12
• Swedish actor Kjellin et al. — 1996-11-08