It is hinted at in an episode or two.
Completely subtle and unconfirmed, if it can be considered a hint at all. Most pointed out episodes "The Immunity Syndrome", "Is There No Truth in Beauty," , "Who Mourns for Adonais?". There are several others. The argument can really go both ways. I mean it was the 60's , and we all know how the Kirk and Uhura kiss turned out. However if for example in the new movie Spock ended up with Yeoman Rand you could also piece a possible relationship between them. http://www.youtube.com/watch?v=fK3Fc14xOu8
It was probably the hinted-at relationship from Star Trek: The Original Series and Star Trek: The Remastered Original Series (Nimoy and Nichols did seem to have a chemistry) that elicited the writers of Star Trek to write the relationship depicted by Zoe Saldana and Zachary Quinto. ProfessorTrek 20:42, July 16, 2011 (UTC)