TV Ratings: 'Big Bang Theory' Hits Record 19 Million Viewers, Matches Demo High

UPDATED: Viewership for the entire CBS lineup surges, with "Person of Interest" also hitting new highs.

CBS towered over the rest of the broadcast networks Thursday night, airing originals of its entire lineup against a bevy of encores.

The night started on a particularly strong note for The Big Bang Theory. According to fast affiliate returns, the comedy grew to a new series high in total viewers (18.98 million), topping the previous record by more than 1 million viewers. The series also matched a previous high of a 6.0 rating with adults 18-49

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Two and a Half Men (4.6 adults rating) was up to a season high. Person of Interest (3.4 adults) matched its previous series record and hit a new high among viewers (16.14 million). Elementary matched its highest returns since the premiere, a 2.5 adults rating. The network averaged a 3.7 adults rating and 14.9 million viewers for the night.

Two more episodes of Mobbed aired on Fox. The 8 p.m. broadcast was even with Wednesday's 1.0 adults rating, while the 9 p.m. was up a tenth from the previous night's to a 1.2 adults rating. The network averaged a 1.1 adults rating and 2.9 million viewers.

Elsewhere, an encore of Nashville and back-to-back Scandal repeats earned a 0.8 adults rating and 3.3 million viewers on ABC. Encores of NBC's usual Thursday lineup averaged a 0.8 adults rating as well and 2.5 million viewers.

Repeats of The Vampire Diaries and Beauty and the Beast pulled a 0.4 adults rating and 996,000 viewers.

Univision averaged a 1.7 adults rating and 4.2 million viewers for the night.