Historical clue formulations

• Mork's planet on an old sitcom — 2026-07-15
• Mork's home planet — 2026-06-21
• Home planet of a classic TV alien — 2024-06-12
• Sitcom planet of the '70s and '80s — 2022-04-03
• Mork's home planet on "Mork & Mindy" — 2021-07-27
• Planet where the cry "Shazbot!" is said to have originated — 2020-05-10
• Planet of 1970s-'80s TV — 2020-01-02
• Mork's home planet on "Mork & Mindy" — 2019-09-04
• Mork's birthplace on "Mork & Mindy" — 2019-05-01
• Mork's planet — 2018-09-02
• Sitcom world — 2017-08-12
• Mork's birthplace, on TV — 2016-05-16
• TV alien's home — 2015-12-06
• Mork's planet — 2015-07-28
• Planet whose inhabitants age backward — 2014-04-11
• 1970s-'80s TV planet — 2014-02-18
• Planet first mentioned on "Happy Days" — 2013-09-06
• Mork's birthplace, on TV — 2012-07-02
• Home planet of Mindy's mate in an old sitcom — 2012-06-25
• Mork's planet — 2012-06-20
• TV planet — 2008-09-04
• Fictional TV planet — 2008-02-17
• TV planet — 2008-01-23
• TV planet — 2006-12-06
• Mork's planet — 2006-11-29
• Fictional TV planet — 2005-06-02
• Where Mindy's TV friend came from — 2002-10-28
• TV alien's home — 2002-04-19
• TV planet — 2002-01-11
• TV planet — 2001-10-13
• Sitcom planet — 2001-08-22
• Mork's planet — 2001-02-15
• Where Mork and Mindy honeymooned — 2000-07-15
• Sitcom planet — 1998-03-24
• Where Mindy honeymooned — 1997-12-31
• TV planet — 1997-12-25
• Home planet in a 1978-82 sitcom — 1997-11-18
• Fictional planet — 1997-07-23
• Where Mindy honeymooned, in 1981 TV — 1997-02-28
• Where TV's Mindy honeymooned — 1996-08-04
• Fictional planet — 1994-01-22