Our favorite comedy is off this week, thanks to the Olympics on NBC. But when The Office returns with an hour-long episode March 4, it will do so with a momentous occasion:

Pam and Jim's baby will be born into the world of Dunder Mifflin.

In anticipation of this watershed moment for the couple, NBC has released some brand-new promos. This first one, a 15-second effort, shows the lighter side of the cute parents-to-be:

[video url="http://www.tvfanatic.com/videos/the-delivery-promo-ii/" title="The Delivery Promo II"] [/video]

If the baby's birth is anywhere near as entertaining as the wedding episode, we're in for an Office treat. Follow the jump for a second, longer, emotional preview of next week...

[video url="http://www.tvfanatic.com/videos/the-delivery-promo/" title="The Delivery Promo"] [/video]

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.