The first time I remember seeing Mr. Spock’s ears was in The Trouble with Tribbles, a tremendous episode of the original Star Trek. I was hooked.
Courtesy “Learn to Speak Cat” by Anthony Smith
In one of the more unusual tributes to Mr. Nimoy, CBC news reports that in Canada, people have been marking up five-dollar banknotes, changing the portrait of former prime minister Sir Wilfrid Laurier to look like Spock.
You will be remembered, Mr. Nimoy–and in your memory, that unforgettable episode of classic Star Trek, The Trouble with Tribbles.
Ed Hoornaert (Mr. Valentine) 
Loved that episode!
Star Trek was wonderful. Wish I had the time to sit and watch this. RIP, Leonard Nimoy.
Sometime when you have the chance, Cara, watch that episode on YouTube. As KM said, it’s a great show–and it launched David Gerrold’s career.