CBS celebrated a number of high points in the prime-time ratings for Monday night, while a Fox series sank to its all-time low, based on Nielsen overnights for the key 18-49 demo.

TVbytheNumbers.com reports that the CBS shows "How I Met Your Mother," "2 Broke Girls" and "Mike & Molly" all delivered season highs in the 18-49 demo. "Mother" surged seven-tenths of a point from last week to a 3.8, "Molly" climbed five-tenths to a 2.6 and "Girls" rose three-tenths to a 3.0.

Elsewhere on CBS, "Mom" was up a half-point in 18-49 with a 2.4 and "Intelligence" climbed four-tenths to a 1.5.

Fox saw its drama series "The Following" hit a series low, sinking from a football-inflated 4.4 average a week ago in viewers 18-49 to a 2.0. A repeat episode of "The Following" at 8 p.m. delivered a 1.1.

ABC’s two-hour "The Bachelor" improved two-tenths from last week’s season low, climbing to a 2.5 in the 18-49 demo. A repeat of "Castle" finished with a 1.4 in the 10 p.m. hour.

NBC’s "The Blacklist" bounced back from last week’s series low, rising two-tenths to a 2.5 average in 18-49. Back-to-back episodes of "Hollywood Game Night" notched a 1.5 and a 1.3.

CBS wound up on top for prime time overall with a 2.5 average in adults 18-49, ahead of ABC (2.1 average), NBC (1.8), Fox (1.6) and Univision (1.4). CBS also claimed a narrow win in total viewers, averaging 9.1 million to lead ABC (8.0 million), NBC (6.7 million), Fox (5.0 million) and Univision (3.3 million).