Mark Harmon, or rather Special Agent Leroy Jethro Gibbs on the highly rated police procedural drama ‘NCIS,’ has been voted TV’s most popular personality for the second year in a row.

The 2,237 adults who participated in Harris Interactive’s annual poll selected daytime talk show host Ellen DeGeneres as TV’s second most favored star, followed by political talkers Jon Stewart and Bill O’Reilly.

Next were late night hosts’ Jay Leno and David Letterman, and then Oprah Winfrey, who’s move to her own channel dropped her from the two spot in 2010 to seventh most popular in 2011.

What is it about Harmon that makes people love him more than Oprah, Stewart and Letterman?

[Harris Interactive]