CBS, ever a bastion of stability, will bring back 20 primetime series next season.

America’s most-watched network on Thursday announced renewals for 18 series — including two first-year comedies — on the heels of earlier pickups for “The Big Bang Theory” and “Survivor.”

But neither of the net’s new dramas from this season — thriller “Hostages” and sci-fi vehicle “Intelligence” — is on the list of returning shows, nor is long-running “The Mentalist.” Also missing is Robin Williams-Sarah Michelle Gellar laffer “The Crazy Ones,” which is doing OK in the ratings and still has another month to prove itself.

“The best way to launch new shows in the fall and throughout the season is to surround them with a strong and stable lineup of successful series,” said CBS Entertainment chairman Nina Tassler. “The shows we’re picking up today cut across every night of the week and feature genre leaders, time period winners and the most-watched shows on broadcast television.”

The 20 programs encompass 17 hours of primetime programming and include nine dramas: “Blue Bloods,” “Criminal Minds,” “CSI, “Elementary,” “The Good Wife,” “Hawaii Five-0,” “NCIS,” “NCIS: Los Angeles” and “Person of Interest.”

The renewed comedies are rookies “The Millers” and “Mom” (pictured) and veterans “Mike & Molly,” “Two and a Half Men” and “2 Broke Girls.”

In alternative programming, “The Amazing Race” and “Undercover Boss” will be back, along with “Survivor,” whose renewal had previously been announced. And on the news side, there’s “60 Minutes” and “48 Hours.”