Page and Kentucky are correct. It was never said. Only once did he say, "Scotty, Beam me up.".....as an inside joke. The phase became popular from a T-shirt, "Beam me up Scotty....there is no intelligent life down here"
Another good trivia is that the famous line from "Snakes on a Plane", by Samuel Jackson, "Enough is enough,. I've had it with these M**f*** snakes on this M**F*** plane....", was not in the original movie. It became a viral phrase by the fans, and was added in a re-shooting of scenes that were changed due to fan input. Snakes on a Plane has become a cult movie, like Rocky Horror, and the fans dress up and take rubber snakes or long balloons and yell out the lines during the movie.
While some may think that is stupid, it beats the he!! out of tweeting your BFF from the mall. At least they are participating in an activity together.
Other great quotes that were never said are:
"Just the facts, ma'am"
"It's elementary, my dear Watson"
"Luke, I am your father"
"Play it again, Sam"
"Damn it, Jim, I'm a doctor, not a...!"