It’s 1:01 a.m. on a Sunday morning in May, and Lorne Michaels, the creator and producer of “Saturday Night Live,” has just finished the final episode of the 49th season. He spent those 90 minutes pacing backstage, hands in pockets, surveying the actors, allowing himself only an occasional chuckle of satisfaction.

As members of the cast flood onstage to celebrate another year in the books, they enthusiastically hug one another and the evening’s host, the actor Jake Gyllenhaal, and musical guest, the pop phenom Sabrina Carpenter.

But on the floor, Michaels, 79, has just concluded his 20th show of the year with resignation: “I only see the mistakes,” he says. Some jokes could have landed better, and he is second-guessing his choice to shorten certain skits. He is likely to spend the weekend perseverating about every detail, he says. By Monday, he’ll find some degree of contentment — until he has to do it all over again.

Michaels, through “S.N.L.,” has built an entertainment empire that has survived for half a century despite the dismantling of traditional television.

He is loath to call himself a chief executive, but underneath his Canadian humility he has become something of a management guru: He spends his days recruiting supertalents, managing egos, meeting almost impossible weekly deadlines, wading into controversy — in most cases deftly — and navigating a media landscape that has put many of his peers out of business.

All the while, unlike most chief executives who have become the face of their brand, he has studiously avoided the spotlight.