The Big Bang Theory is best-performing US scripted show

The Big Bang Theory has been revealed as US TV's best-performing show on the commercial broadcast networks.

The CBS comedy achieved an average 6.2 rating in the coveted 18-49 demographic during the 2013-14 season.

© Warner Bros. / Michael Yarish

NBC's The Voice finishes in second place with 4.6, followed by ABC's Modern Family and Grey's Anatomy with 4.5.

The Blacklist, How I Met Your Mother and Scandal also feature in the top ten.

CBS drama NCIS is the most-watched show on US TV overall, but based on the 18-49 demographic, it achieved a 3.3 score.

The top 20 in full (discounting sports programming):

1. The Big Bang Theory, CBS (6.2)

2. The Voice, NBC (4.6)

3=. Modern Family, ABC (4.5)

3=. Grey's Anatomy, ABC (4.5)

5=. The Blacklist, NBC (4.3)

5=. How I Met Your Mother, CBS (4.3)

7=. The Voice, Tuesdays, NBC (4.2)

7=. Scandal, ABC (4.2)

9. Resurrection, ABC (3.8)

10=. Criminal Minds, CBS (3.3)

10=. NCIS, CBS (3.3)

10=. Once Upon a Time, ABC (3.3)

10=. American Idol, Wed, Fox (3.3)

10=. Sleepy Hollow, Fox (3.3)

15. American Idol, Thursdays, Fox (3.2)

16=. 2 Broke Girls, CBS (3.1)

16=. Survivor, CBS (3.1)

16=. The Bachelor, ABC (3.1)

16=. Agents of SHIELD, ABC (3.1)

16=. Family Guy, Fox (3.1)

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via All - Digital Spy - Entertainment and Media News