TV's top personalities

Q scores, a measure of the name-recognition and likability of stars compiled by the New York-based company Marketing Evaluations, show that the average age of the most popular television stars is increasing. Prime-time TV's top Q-score personalities and their ages:

1. William Petersen, "CSI" (55)

2. Hugh Laurie, "House," (48)

3. Christopher Meloni, "Law & Order: SVU" (47)

4. Sam Waterston, "Law & Order" (67)

5. George Eads, "CSI" (41)

1. Mariska Hargitay, "Law & Order: SVU" (44)

3. Reba McEntire, "Reba" (53)

5. Katherine Heigl, "Grey's Anatomy" (29)