After a long span of increasingly airless personal drama, followed by last week's intrusion of a major historical tragedy, the show got back to its advertising roots with a vengeance. In fact, the show may have re-booted itself, as it did at the end of Season 3. For once again, the old Sterling Cooper etc. is no more.

"Christmas Waltz" is an improved episode of Mad Men in this uneven season of a longtime great TV series, an episode with a very welcome return to advertising. Too much of this season has been taken up with some fairly arbitrary soap opera doings.

They stand on opposite ends of the show, as counterparts to one another -- the sexy, damaged powerhouses with perfectly crafted exteriors. When they finally come together, their chemistry is so explosive that we simultaneously want and fear their union.

Lane Pryce has been struggling to find where he belongs in the new firm for quite some time, and he decided he was going to assert himself on "Mad Men...

With most late night shows following a pretty strict unwritten formula, things can seem fairly predictable most of the time. That's why it's always a ...