Television:
Star Trek

Leonard Nimoy: "Chekov!"

Walter Koenig: "Aaaahaaaa!"

Nimoy: "Chekov!"

Koenig: "AAAaaahhaaaaAA! ..."

Nimoy: "Chekov!"

Koenig: "HaaAhaa....!"

Leonard Nimoy: "Doctor, I am in command of the Enterprise."

Leonard Nimoy as Spock: "Captain, we are registering very curious readings from all sensors."

William Shatner as Kirk: "Specify."

Nimoy: "I cannot. According to our instruments, space itself is literally breaking up."

William Shatner: "How 'bout it, Spock."

Nimoy: "Fascinating."

Nimoy: "I'm sure the Captain would simply have said, 'Forget it, Bones.' "

James Doohan: "Why, that power leak has unbalanced the ship, and she's starting to drift! I can't hold her in place that long!"

Doohan: "Captain, we're losing power in the warp engines."

Nimoy: "I suggest you avoid emotionalism and simply keep your instruments correct."

Doohan: "What are you thinking of, Doc? Are you trying to kill us all?"

William Shatner: "Lieutenant, open up a hailing frequency."

Nichelle Nichols as Uhura: "I've been trying to raise them, sir. There is no response."

Leonard Nimoy: "There is no known phenomenon that would account for these readings."

William Shatner: "What about sensor failure?"

Nimoy: "Negative. I have run a complete check on all systems."

Leonard Nimoy: "There is virtually no sensor contact, no mass analysis, no trace of radiation. We see it, but our sensors indicate it is not there."

William Shatner: "We are in unsurveyed territory."

DeForest Kelley: "What the devil?"

Kelley: "Mixed with alcohol, it merely deadens certain nerve inputs to the brain."

Doohan: "Oh, well, any decent brand o' Scotch'll do that."

Shatner: "Ahead warp factor two, Mr. Sulu."

George Takei: "Warp factor two, sir."