I didn't know they were Grass Valley video switchers until I was a tv production intern ten years later. Was fun recognizing them from the film. Every time I used the fader bar, I imagined I was vaporizing Alderaan.
I suppose somewhere there is a fan who knows his guns who cringes at all the British firearms dressed up as blasters. Or a camera collector who groans when Luke, Ben, or Darth whip out a Graflex flash gun. ;)