via BuzzFeed

Executive producer Chuck Lorre used his vanity card to pay tribute to the late Star Trek legend.

Last night The Big Bang Theory paid tribute to the late Leonard Nimoy, who was most famous for his role as Mr Spock in Star Trek.

Co-creator and executive producer Chuck Lorre is known for featuring a vanity card at the end of every episode for The Big Bang Theory that includes some advice, a joke, or an observation. However, last night just one image followed the end of the episode, a picture of Nimoy and the words: "The impact you had on our show and on our lives is everlasting."

CBS