40 years or more now NormK. I remember IR remotes were common by the late 1980s.
I remember a TV we were renting in the very early 1980s had this very chunky cordless remote control with large chrome push keys. I was spellbound by this luxury feature.
Whatever signal it used to talk to the TV came out of this hole with a fine mesh across it at the end of the remote control.


Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!