The Flash is continuing on an impressive streak.
The CW series saw an 11% boost in viewers during last night's part-one of a two-part crossover with the network's other DC Comics property, Arrow. The Flash drew 3.9 million total viewers and 1.4 rating in the key 18-49 demo.
Those ratings will likely carry over to tonight's episode of Arrow which will conclude the two shows' 2015 crossover event.
CW's other Tuesday night comic book property, iZombie, also pulled an increase in viewers for its highest rated episode of the season.
earned a 0.6 rating in the key demo with 1.6 million total viewers.