Nielsen ratings

Prime-time viewership, in millions, compiled by Nielsen for the week ending March 16.

1. "The Big Bang Theory," CBS, 17.34

2. "The Voice" (Monday), featuring Shakira, above, NBC, 13.79

3. "The Voice" (Tuesday), NBC, 13.51

4. "The Walking Dead," AMC, 12.87

5. "Blue Bloods," CBS, 11.68