The Star Trek: The Next Generation episode that saved the series turns 30

The Hollywood Reporter

The classic Season 3 "Yesterday's Enterprise" episode airing on Feb. 19, 1990 was made during a low point in the morale of the writing staff. Co-writers Ronald D. Moore and Ira Steven Behr looked back at the game-changing episode with a development process that was so convoluted and stressful that Behr still can't believe it's highly regarded.