Some of the web flotsam I perused suggests that “radio set” comes not from household / commercial products, in a nice cabinet, with standard-size antenna.
Instead the term is earlier used lots of maritime and “ham” radio systems, which which were made of separate functional components connected to do what they do.
[ power supply, antenna appropriate <- that’s still external in a lot of cases,
The earliest ‘radio set’ were a crystal and a wire-coil tuning apparatus.
and for receiving: radio frequency tuner, sound amplifier, loudspeaker or headphones
and for transmission: microphone, voice amp, radio signal modulator, radio carrier frequency signal generator and broadcast amplifier… ]
In my opinion, radio sets like those deserve the term.
I’d agree that ‘TV set’ is superfluous currently because “TV” says all you need to say.
Cable “TV” programming doesn’t use any of the television parts of the set if you have a digital connection like (DVI or HDMI) from the cable box.(subsections like broadcast signal tuning, Image detection and image reconstruction), and internet programming (e.g. Netflix or YouTube) is digital from your computer to the “TV”.
When we’re watching digital programming, we’re just using the display.
It’s a “monitor” most of the time for a lot of us.