Historical clue formulations

• Radio station on TV — 2023-09-06
• 1970s-'80s sitcom station — 2021-08-06
• Sitcom station — 2021-05-15
• Cincinnati radio station of bygone TV — 2019-12-24
• Cincinnati sitcom station — 2017-08-01
• 1970s-'80s sitcom locale — 2015-06-13
• Radio station on TV — 2013-07-14
• Johnny Fever's station — 2013-02-08
• Les Nessman's station — 2012-07-11
• Les Nessman's station in a 1978-82 sitcom — 2011-10-18
• Cincinnati sitcom station — 2011-03-02
• Dr. Johnny Fever's station, in 1970s-'80s TV — 2010-10-20
• Call letters on 1970s-'80s TV — 2008-08-10
• 1978-82 sitcom locale — 2007-05-11
• Sitcom station — 2007-01-10
• Where Venus Flytrap worked, on an old sitcom — 2002-04-25
• Radio station on old TV — 2001-03-04
• 1970's-80's sitcom setting — 2000-06-22
• Dr. Johnny Fever's station — 1998-10-04
• Cincinnati letters — 1994-08-11
• Station that went on the air in 1978 — 1993-12-29