Red ingle 1960 - A black and white photo of a man in a cowboy hat

Red Ingle performing his 1947 hit "Tim-Tay-Shun" on Ford Startime. This is a screenshot of this segment of the show.
The item can be dated from the original television air date.
It can also be verified by viewing another clip from the program of Jo Stafford singing "The Gentleman Is a Dope". The television studio and set are the same in both video clips; Stafford performs solo and with Ingle wearing the same gown.Nostalgia With Let-Down Trimming 14 March 1960 Billboard
The list of songs performed on The Swingin', Singin' Years includes both "The Gentleman Is a Dope" and "Temptation"; The Stafford/Ingle version was a song parody of this. Stafford and Ingle are also listed in the performers' credits.
Since most television shows were under copyright by this time, the assumption is that there was originally a copyright on the television program, and that it would have been effective as of the year 1960.
Copyright searches were performed on the following with the following results:

The Swingin', Singin' Years--no information
Startime--nothing was discovered which would apply to a television series or show.
Ford Motor Company--for the year 1988--when any copyright would have been renewed--nothing was discovered which would apply to a television show.
National Broadcasting Company-for the year 1988--nothing was discovered which applies to this particular television series or show.
There is no evidence of any copyright renewal for this series or program in it.