The crossover business is looking pretty super for the CW this year with season highs over the first two nights. First Supergirl soared on Monday, and now The Flash (1.5/5) has crossed the line with its best Season 3 rating among adults 18-49 and its most watched episode since December 9, 2014.

The re-appearance of Reverse Flash almost two years ago snagged 4.66 million viewers for the Scarlet Speedster, but last night’s crossover with Supergirl, Arrow and DC’s Legends Of Tomorrow was close behind with 4.09 million. That’s up 39% in eyeballs from Flash’s November 22 show and 36% in the key demo. Compared to last year’s second annual crossover with Arrow, last night’s Flash bopped up 7% among 18-49s and 3% in total audience.

Super to super, last night’s Flash is also up 36% over the fast affiliate ratings for the November 28 Supergirl, which kicked off the four-night crossover in its final minutes. The “Invasion” crossover continues tonight on Arrow, which is celebrating its 100th episode, and Legends on December 1. Flash lead-out No Tomorrow (0.4/1) was up a tenth.

Showing NCIS and Bull encores last night, Supergirl’s former home CBS also turned towards Christmas on Tuesday with its annual special Rudolph The Red-Nosed Reindeer (2.3/8). The holiday classic was even with the fast affiliates of its 2015 airing, which went up a tenth in the final numbers. However, a gift under the ratings tree for the House of Moonves is that in its second year head-to-head with The Voice (1.9/7), Rudolph topped the mighty NBC competition show in the demo

Talking about going up, This Is Us (2.7/9) topped the night again for the seventh straight week and saw double-digit increases over last week and a viewership high. With 10.6 million watching, the Dan Fogelman created breakout drama was up 17% over its November 22 show and 5% over its September 20 premiere. Among adults 18-49, last night TiU rose 13% to be just a tenth behind its all time demo best.

With The Voice up a tenth from last week and Chicago Fire (1.7/7) up 13%, NBC won Tuesday again with in the demo with a 2.1/7 rating. The Comcast-owned net also took the top viewership spot from CBS with 9.73 million viewers overall.

Back after last week’s Dancing With The Stars season finale, ABC’s Fresh Off The Boat (1.2/4) and The Real O’Neals (1.0/3) were down a tenth while Marvel’s Agents Of S.H.I.E.L.D. (0.8/3) was dead even with its last original of November 1 show. The Middle (1.6/6) and American Housewife (1.4/5) were even and down a tenth respectively from last week.

Over on Fox, there was a lot of the same kind of action with Brooklyn Nine-Nine (1.0/3) up a tenth and New Girl (0.8/3) and Scream Queens (0.5/2) he same as their November 22 shows.