Nielsen ratings

Prime-time viewership, in millions, compiled by Nielsen for the week ending March 31.

1. "The Big Bang Theory," CBS, 17.73

2. "NCIS," CBS, 17.16

3. "NCIS: Los Angeles," CBS, 15.31

4. "American Academy of Country Music Awards," CBS, 14.17

5. "Dancing With the Stars," ABC, 14.1