TREKCORE > TOS > EPISODES > THE IMMUNITY SYNDROME > Behind the Scenes

	When the telemetry probe is launched, the bridge crew cover their ears. Spock, however, does not. Spock is supposed to have more sensitive hearing than humans, so why doesn't he clutch his head in pain?
	Spock refers to the organism's size in miles, but Kirk talks about "thousands of kilometers". Not only do they still mix the two types of measurements, but you'd think Spock would be the one that uses "kilometers."
	Kirk's mirror in his cabin is still waist high with no chair or anything in front of it.
	Lieutenant Kyle, who had previously been one of the transporter operators, appears as a helmsman in this episode and sports a gold tunic. Captain Kirk also refers to him as "Mr. Cowell" throughout the episode, even though John Winston is still credited as "Lieutenant Kyle".

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