'The Flash' is The CW's Most Watched Series Premiere in 5 years

Grant Gustin stars as Barry Allen in The Flash.

The Flash zoomed out of the gates last night - Tuesday night's series debut of The Flash was The CW's most watched (4.54M) and highest-rated A18-49 (1.8/6) series premiere in more than five years, since The Vampire Diaries bowed in 2009.

The Flash is the network's third most watched and highest rated series premiere ever in A18-49, behind only The Vampire Diaries and 90210.

The Flash was The CW's most watched telecast, of any CW show, since the series premiere of TVD on 9/10/09.

In the Tuesday 8-9 p.m. hour, The Flash was second in A18-34, behind only NBC, and beat ABC and Fox in total viewers. For the night (8-10pm) The CW outrated both ABC and Fox in A18-34 and A18-49.

The Flash was The CW’s most watched show in its time period in more than seven years (Gilmore Girls series finale on 5/15/07) and highest rated in A18-49 in more than six years (90210 on 9/2/08). The Flash ties the network's best ever rating in the time period in M18-34 (1.8/7, Gilmore Girls on 5/15/07).

The CW’s most watched night (3.66M) in more than four years (5/12/10), and its highest rated night in A18-49 (1.5/5) in more than four years also (9/9/10). It was the best A18-34 night (1.3/5) for the network since 10/11/12.

This was The CW's most watched (3.66M) Tuesday night in more than six years (90210 premiere on 9/2/08) and highest-rated in A18-49 (1.5/5) since 9/9/09. It’s the network’s best Tuesday night ever in M18-49 (1.7/6) and ties the net’s best Tuesday ever in M18-34 (1.6/6).