I have that TV, need to find that earphone!

http://videokarma.org/attachment.php?attachmentid=197048&d=1525829447

There's something very ahead of its time about that photo! It took 5 decades, but now every couple that age sits staring at individual screens.

Sony 5-303W. Very common, lots of them still survive.

Standard earphone, isn't it?

https://i.ebayimg.com/images/g/1xgAAOSwWDFa3T1j/s-l1600.jpg

.

There's something very ahead of its time about that photo! It took 5 decades, but now every couple that age sits staring at individual screens.

^ This.