Like self-anointed cool kids clustering around their own table at the high-school cafeteria, the stars of “Mad Men” and “30 Rock” (8:30 p.m., NBC) have joined forces. Both shows have won critical raves and a shelf full of awards that seem to stand in inverse proportion to their popularity. And despite meager ratings, both shows were renewed for third seasons.

On tonight’s “Rock,” Jon Hamm, who plays Don Draper, the suave and laconic ad executive from “Men,” guest stars as a new neighbor in Liz Lemon’s (Tina Fey) apartment building. Liz has attracted handsome men before only to mess things up, so don’t expect him to stick around for too long.

Fey’s impact on a canned Hamm showed up at the recent Screen Actors Guild Awards. Picking up the night’s most prestigious award for best ensemble TV show, Hamm thanked the show’s “dozens of fans.”

It was a funny line, but it was even better when Fey thanked her show’s “dozens and dozens of fans” at the 2007 Emmy Awards. But what’s a little creative plagiarism between cool kids?

• Now that business has gone to the dogs, the business network turns to the business of dogs. “American Originals: Westminster Dog Show” (8 p.m., CNBC) offers a laudatory look at the popular sporting event returning to Madison Square Garden on Monday and Tuesday.

More, or rather less, than a business report, this is really a piece of promotional fluff, not unlike the pre-Super Bowl hoopla that preceded last Sunday’s big game.

And it doesn’t hurt that CNBC and USA, the home of Westminster, are corporate cousins.

Buried in 60 minutes of promotion is a brief business analysis of the growing segment of the economy devoted to dogs, a robust market that has yet to tail off.

“American Originals” spends too much time with the brand manager for the dog-food company that sponsors the Westminster Show on USA, making this a show promoting the commercials for another show on an affiliated network.

If these were normal times, this rabid brand of corporate synergy could be overlooked, if not forgiven. But the seriousness of the business climate and its centrality to today’s news offers CNBC a tremendous opportunity to be relevant and essential. The network does not seem to be rising to the occasion.

Tonight’s other highlights

• Randy’s lottery mishap convinces him to start a list of his own on “My Name is Earl” (7 p.m., NBC).

• The Grave Digger kidnaps Booth on “Bones” (7 p.m., Fox).

• Betty tries to put her family first on “Ugly Betty” (7 p.m., ABC).

• Multiple births have always been newsworthy, as seen in the 1944 comedy “The Miracle of Morgan’s Creek” (7 p.m., TCM).

• A dead victim turns out to have ominous connections on “CSI” (8 p.m., CBS).

• Michael goes on the lecture circuit to explain the relative success of the Scranton branch on “The Office” (8 p.m., NBC).

• William H. Macy guest stars on “ER” (9 p.m., NBC).

• Michael joins forces with an art dealer on “Burn Notice” (9 p.m., USA).

• A woman wants a man to commit, but first he has to move out of his mother’s house on “Greg Behrendt’s Wake-up Call” (9 p.m., SOAPnet).