Last week’s four-night DC superhero crossover event is certainly paying off big for the CW, pulling in 2.3 million viewers for its most-watched week in six years.

November 28 also was the most-watched Monday night in nearly seven years for the network with 2.36 million viewers, and the highest-rated Monday night in more than five years in adults 18-49 (0.8/3 since 10/3/11) and in four years in adults 18-34 (0.7/3 on 12/17/12). It was the network’s highest rated Monday night in men 18-49 (0.8/3) in almost eight years (since 1/12/09).

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For the week of November 28, the CW was up 20% in total viewers versus the same week last year, up 15% in adults 18-49 (0.7 vs. 0.6) and up 16% in adults 18-34 (0.6 vs. 0.5), according to Nielsen stats.

Other ratings highlights from the week of November 28:

Supergirl had its most-watched (3.5M) episode of the season, and matched its season premiere ratings in both adults 18-34 (0.9/4) and adults 18-49 (1.1/4). It also was the CW’s most-watched show in its Monday 8-9 PM time period in more than eight years (since 9/15/08).

The Flash saw its most-watched episode (4.15M) in almost two years (12/9/14) and its highest rated episode of the season. It drew a 1.3/5 in adults 18-34, its best rating in that demo since 5/10/16, and a 1.5/5 in adults 18-49, its best since 2/16/16. The Flash also was up 5% in total viewers from last year’s crossover episode, up 7% in adults 18-49, and up 8% in adults 18-34.

Arrow delivered the series’ most watched (3.55M) and highest-rated episode since last season’s crossover episode (12/2/15). It more than doubled its rating in adults 18-34 (1.1/5), up 120% from its last original episode, and matched last season’s crossover rating. Its 1.3/5 rating in adults 18-49, was up 86% from its last original episode and off only a tenth from the crossover last season.

And DC’s Legends of Tomorrow had its most-watched episode ever (3.39M) and its highest-rated episode ever in adults 18-34 (1.0/5). The series also matched its highest rating ever in adults 18-49 (1.2/4), its best in that demo since its debut. It was Legends’ highest rated episode ever in men 18-34 (1.3/6) and it tied its best rating ever in men 18-49 (1.4/5). The series delivered a five-year high in the time period in total viewers (since 11/3/11) and a two-year high in adults 18-34 (since 12/11/14).