Historical clue formulations

• Doubles — 2025-06-28
• Sci-fi remakes? — 2025-05-02
• Double figures? — 2021-11-11
• Genetic copies — 2017-05-15
• PC lookalikes, e.g. — 2013-01-28
• Matchmaker's output? — 2011-03-19
• More of the same — 2008-02-15
• They do Windows — 2003-09-28
• Controversial reproductions — 2003-06-01
• Some computers — 2001-08-05
• Twins — 2000-09-28
• They're all the same — 1999-11-26
• Look-alikes — 1998-03-26