I remember years ago, when some character in "Days of our lives" was in dire health straits.
The "heart monitor" was an old Tektronix 545B apparently stolen from the Network techs.
On another occasion, on "Doctor Who" the Doctor was fiddling with this very "high tech" looking cylindrical device with controls sticking out of every part of it.
Many years later, I saw the very same type of device sitting on a shelf in TVW's Camera maintenance area.
Apparently Philips supplied this device which was never used.
The "Beeb" obviously found a better use for it.
Not quite the same thing, but related:-
In the old "Battlestar Galactica", one episode had two of the main characters apparently on "present day" Earth.
They were equipped with motorcycles which were "supposed to blend in", with the " in joke" being that they looked too spectacular & futuristic to do so.
In fact, they looked positively "dowdy" compared to the then current Suzuki Katana.