Question: When did spock first say live long and prosper?
Disambiguated questions and answers: question: On what date did Spock first say Live Long and Prosper?
What was the name of the episode where Spock first said Live Long and Prosper?
What was the season and episode number of the episode where Spock first said Live Long and Prosper?
In what episode overall did Spock first say Live Long and Prosper?
answer: September 15, 1967
Amok Time
Season 2 Episode 1
30
Natural Questions answer: Amok Time (from the Wikipedia article "Vulcan salute")