Quick answers to: "Does the US still have old broadcast TVs?"
Yes. But ones made before 1999 or so will need an inexpensive converter box, since the picture format has changed from analog to digital.
(Hopefully that's a lot clearer.)
“Yes. But ones made before 1999 or so will need an inexpensive converter box, since the picture format has changed from analog to digital.”
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OK, that explains it...Thanks. Happy not to be back in the USSA ;)