A.V.I.A.F.
Captain
A minor note regarding the sun/son thing: there's no need for anybody to speak English in the episode but Kirk, Spock and McCoy.
That is, there's no evidence that the followers of the Son would ever have spoken a word that in their own language could be confused with the word for the sun. It's the Universal Translator that creates this misunderstanding, by translating the local word for Son into an English word that can be interpreted two ways if not seen in writing. Had the UT chosen to translate the local word into "offspring" or "kiddo" or "fruit of God's loins" or whatever, Kirk wouldn't have gotten confused. But apparently the locals didn't use synonyms of Son so the UT didn't feel obligated to use synonyms, either...
What's non-primitive about the worshipping of fathers and sons, BTW? Isn't that even more primitive than sun worship?
Timo Saloniemi
But, doesn't Spock make the observation that the locals are speaking English (when the escaped slaves open fire on our heroes shortly after they have beamed down to the planet and warn them not to move)? Spock's exact line is, "Complete Earth parallel. The language here is English." Doesn't this imply that the UT was not necessary or perhaps not even being used?