Historical clue formulations

• Scheming sergeant of old TV — 2020-06-14
• Conniving sergeant of 1950s TV — 2012-12-09
• Sergeant once played by Phil Silvers — 2004-11-16
• Silvers role — 1997-09-07
• Sergeant at TV's Fort Baxter — 1997-05-06
• Silvers sarge — 1996-12-01