Vulcan salute Leonard Nimoy for the "Star Trek" episode "Amok Time", which was the first episode with Vulcans other than Spock. Nimoy wanted something to help develop the Vulcans sociologically and suggested that Vulcans have a gestural greeting. He then proposed the (now globally-recognized) sign. The accompanying spoken blessing, "live long and prosper" – ""dif-tor heh smusma"" in the Vulcan language (as spoken in "") – also appeared for the first time in "Amok Time", scripted by Theodore Sturgeon. The less-well-known reply is "peace and long life", though it is sometimes said first, with "live long and prosper" as the reply. The
Zoo TV: Live from Sydney edition" and "Uber edition" of the "Achtung Baby" anniversary re-issue, which were released in November 2011, contain "Zoo TV: Live from Sydney" as one of four bonus DVDs. The music from "Zoo TV: Live from Sydney" was released on a two-disc album titled Zoo TV Live, also known as Zoo2Live. It was released exclusively to subscribing members of U2.com on 18 November 2006. The album features 25 tracks, including all 22 songs performed in the video, plus a track for the show opening audio, the Macphisto speech, and a bonus track of "Tryin' to Throw Your Arms Around the World",