1x19 Tomorrow is Yesterday - Star Trek: The Original Series Episode Guide

Star Trek: The Original Series

- Episode 01x19

Episode: 01x19
Title: Tomorrow is Yesterday
Type: Regular Episode
Production Code: 6149-21
First Aired: Jan. 26, 1967

Season 1 » Episode #19 - Tomorrow is Yesterday

Star Trek: The Original Series - 01x19 Tomorrow is Yesterday

Summary: After a near-collision with a black star, the Enterprise is thrown back to 20th century Earth. They rescue an Air Force pilot, John Christopher, when his ship breaks up in their tractor beam, but realize they have created a paradox: they can't send him back to Earth with knowledge of the future, but if they take him with them to the future then his son will never be born and history will be changed.

Who appeared in this episode?

Mr. Spock

Guest Stars:

Captain James T. Kirk	played by William Shatner
Major Christopher	played by Roger Perry
Dr. McCoy	played by DeForest Kelley
Air Police Sergeant	played by Hal Lynch
Technician	played by Dick Merrifield
Transporter Chief	played by John Winston
Col. Fellini	played by Ed Peck
Scott	played by James Doohan
Sulu	played by George Takei

Season 1 / Episode 19: - Tomorrow is Yesterday

Capt. Kirk: [the bridge crew is picking itself up after being thrown through a time warp; the lights are out] Mr. Spock?
Mr. Spock: Except for secondary systems, everything is out, sir. We are on impulse power only.
Capt. Kirk: Auxiliaries?
Mr. Spock: If Mr. Scott is still with us, auxiliaries should be on momentarily. [he notices Uhura on the floor] Are you all right, Lieutenant? [at her nod, he and Kirk help her back into her chair just as the lights come back on]
Mr. Spock: Mr. Scott is still with us.

Season 1 / Episode 19: - Tomorrow is Yesterday

Capt. Kirk: [to Spock] Your logic can be most... annoying.

[More Quotes]

MISTAKES/GOOFS

PLOT: When the ship travels back in time, the air security guard and Captain Christopher's memory is affected, but no one else's is.
FACT: When the Enterprise is going backward in time, a close-up of the chronometer is shown. It goes "3:15:01", "3:14:00", "3:14:59". In other words, the minute indicator rolled back one second "early"; the progression should've been "3:15:01", "3:15:00", "3:14:59".
FAKE: As the enterprise begins moving back in time toward the sun, the screen on the bridge shows no sun at all, just a course into deep space.
CHAR: Capt. Kirk introduces Mr. Spock to Capt. Christopher as "Lieutenant Commander Spock". Spock's rank on the show is actually Commander and in this episode (as in all episodes) the rank insignia on his sleeves is that of a full Commander.
PLOT: After the Sergeant is placed back (after correcting the time-line), he goes to check the records room and the door is unlocked. However, previously, when Kirk and Sulu tried to get the reports, the door was locked. Since the presence of the Enterprise turned out to be a "mirage" after correcting the time-line, Kirk and Sulu had no reason to take the evidence of the sighting, therefore the door should have been locked when the Sergeant wanted to check it.

TRIVIA

Episode, the Enterprise crew intercepts a radio report that the first manned moon shot will take place on Wednesday. Apollo 11 was launched nearly two years after the filming on 16 July 1969, a Wednesday.
Spock tells Captain Christopher about how an all-woman society tampered with the ship's computer giving it a female personality. Gene Roddenberry was fascinated by the potential of matriarchal society, and revisited the idea in his short-lived series, Genesis II.
The first Star Trek episode shown on German television in 1972.