Historical clue formulations

• Alex of "Jeopardy!" fame — 2024-04-01
• A host of answers? — 2021-08-05
• Man who had all the answers? — 2021-02-28
• Late "Jeopardy!" host Alex — 2020-12-28
• Famous answer giver — 2011-05-08
• TV host with a star on Canada's Walk of Fame — 2011-01-29
• Onetime host of "Classic Concentration" — 2007-12-16
• Game show host impersonated by Ferrell — 2006-05-04
• Game show host who was once a CBC newsman — 2003-12-14
• "Jeopardy!" host — 1999-02-03
• Man with all the answers? — 1998-10-14
• Smart Alex? — 1994-11-04