Gunsmoke was still doing pretty well, tied for 12th (but it was getting long in the tooth, and would come to the end of its long and celebrated run in 1974-75 [its 20th and final year]).
For a show with a twenty-year run on primetime network television, GUNSMOKE retained solid Nielsen ratings practically all the way through. Thirteen of those seasons were spent inside the Top 10, nine of those were in the Top 5, and from 1957 until 1961, it was the #1 show on the air. Even when it fell to #34 in 1967, that still wasn't that bad for a show twelve years old, and it quickly rebounded and regained a large percentage of its audience when CBS shook-up its schedule and moved GUNSMOKE from Saturdays to Mondays for the 1967-68 season.On that 1972-73 chart, Gunsmoke was apparently still doing well in 9th place, that being its 18th season.
For a show with a twenty-year run on primetime network television, GUNSMOKE retained solid Nielsen ratings practically all the way through. Thirteen of those seasons were spent inside the Top 10, nine of those were in the Top 5, and from 1957 until 1961, it was the #1 show on the air. Even when it fell to #34 in 1967, that still wasn't that bad for a show twelve years old, and it quickly rebounded and regained a large percentage of its audience when CBS shook-up its schedule and moved GUNSMOKE from Saturdays to Mondays for the 1967-68 season.