Captain Robert April wrote:
It's easy enough to work around that, though, and just figure that the light blew during the trip through the ion storm.
After all, it's not like there's some Loony Toons sign popping up, saying, "HERE'S WHERE THE ION POD WAS, KIDS!"
Interesting point... I don't recall if I've actually seen the remastered episode at this point (I have the old DVDs and the version I bought for iTunes was the original), so other than the effects shots shown on YouTube and in screen captures, I'm not sure how the changing of the bulb was presented in the context of the story.
But you are correct in that nothing originally filmed would have said what was happening beyond "repairs".