TBT: Pre-COVID-19 Days
The TV Western 'Gunsmoke' ran for 20 years from 1955 till 1975 with some 635 episodes. It remains to this day the longest-running, prime time, live-action series of the 20th century. Below is a picture of the set during filming and again as it appears today.
link: A list of famous guest stars.
This was my go-to TV show as a kid, started watching when I was 8YO.
Warning: Images may contain mountains, outdoor scenes, text, and nature.