Byline: Gary Levin

CBS' Blue Bloods airing tonight (10 ET/PT)

NEW YORK -- It's dinner time for the Reagan clan, and the extended family of CBS' Blue Bloods is crammed around the table, sharing the news that their parish priest has been sent off to Bolivia after allegations of sexual advances, in an episode airing tonight (10 ET/PT).

It's the only time the show's entire main cast, led by Tom Selleck, Donnie Wahlberg, Will Estes and Bridget Moynahan, comes together in its Brooklyn studio.

"Luckily we don't have to eat anything crazy like cheesecake or Chinese food," says Moynahan (who plays daughter Erin, an assistant DA) of Bloods' signature scene, which caps every episode and gives writers a chance to show the family debating the issues raised by the cases.

"I think the audience responds to these things more than any part of the show, really. It's a place where you get everybody's point of view."

It could be the tight-knit family, or Selleck's star appeal, or the unusual blending of a family...