CBS has two mega-hits on its hand this season, with Kathy Bates-led “Matlock” joining the ranks of Justin Hartley’s “Tracker” as the network’s two most-watched series, TheWrap can reveal exclusively.

“Tracker,” which is now in its second season, is averaging 18.2 million viewers per episode, while “Matlock” is averaging 16.9 million per episode across 35 days of multiplatform viewership, according to viewing figures from VideoAmp, CBS research estimates and internal streaming data from Paramount + and other CBS digital platforms.

Heavy hitters “Tracker” and “Matlock” have boosted the CBS primetime lineup to average 10 million viewers — a 3% increase compared to last season — according to live-plus-35-day multiplatform viewing across CBS, Paramount+ and the CBS app.

“Matlock” isn’t the only new series seeing strong ratings, with “Young Sheldon” spinoff series “Georgie & Mandy’s First Marriage” ranking as the network’s No. 3 most-watched primetime series with an average viewership of 13.3 million. “NCIS: Origins...