While Lorre has sometimes written paragraphs of information in his vanity cards, weighing in on any number of topics including his feud with former "Two and a Half Men" star Charlie Sheen, this time it was just a black-and-white photo of Nimoy with the line, "The impact you had on our show and on our lives is everlasting."
Sheldon, played by Emmy winner
In the episode, Nimoy provided the voice of a Mr. Spock action figure Sheldon had on his desk.
"Big Bang Theory" co-creator Bill Prady is also a lifelong "Star Trek" fan and was one of the writers of the 1996 TV special, "Star Trek: 30 Years and Beyond."
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