Why does the U.S.S. Enterprise in the first Trek film "Star Trek: The Motion Picture" (1979) - ST:TMP - have silly ROUND screens on the consoles?
In a way, you can sort of blame me. Or at least, blame bad timing on my part.
When I was working on this film I saw production drawings showing the round screens, which I found ludicrous. I brought this up with the powers-that-be. I pointed out that the Enterprise displays should not emulate 1950s TV sets, and that round screens wasted display space unnecessarily. I also suggested that by the time of the film, displays would probably be holographic (the franchise eventually caught up to this idea in the more recent productions).
My criticism was taken seriously. It was agreed that the round screens would go and that rectangular screens would replace them. Mission accomplished!
Except ... a few days later, I was pulled aside and told that, unfortunately, the round screens would stay. Why? It turned out that they had already been cast in fiberglass by the Paramount set crews, and there wasn't sufficient budget to redo them. So the silly round screens are what you see in the film today.
If I had been able to move on this a bit earlier, this probably would have turned out differently. But I did try.