It wouldn't really matter that they are fake. Most of the people I have met recently under the age of 40 have never seen tube equipment.

When shown a tube chassis they are amazed. They seem to have the idea that if this stuff ever did really work, it worked crudely. When shown a restored tube set that works properly, they are blown away!

They would definitely believe that a 30's Zenith radio cabinet stuffed with a 40's tube TV chassis and a funny color on the CRT was indeed a genuine prewar set!