If there's no objection then I'll name the bonus answer: 1701.
In Forbidden Planet, that was the coordinate position or somesort of designation for location as soon as the C57D comes out of hyperdrive at the begining of the film. NCC-1701 is the registry number for the Enterprise.
And the other production person who worked on both The Outer Limits and Star Trek was Wah Chang. He had done all the creature design and fabrication. You can see the birdlike creature once used in Outer Limits in the Trek pilot, The Cage. It was part of the menagerie of creatures in the cells. Wah Chang designed the Salt Creature in The Man Trap, the Gorn in Arena, and designed and built the tricorder and communicator.
I think you're right Scott, Forbidden Planet was the first to use a whole electronic score. I recall seeing both Forbidden Planet and The Day The Earth Stood Still as a kid on TV and they both, plus War of the Worlds stuck with me!
Forgot to add this link to a guy whose main focus is creating replicas of famous robots:
Fred Barton Productions : Celebrity Robots Brought to Life
Since Joel and Mike were correct, why don't they both submit a question.