Despite all the other plots going on in this episode, "The Baby" is most notable because it features - after months of tension - the very first catfight between Krystle and Alexis. Season Three's lily pond fight gets all the glory, but it's this original contretemps in Alexis' studio that's the best. So what if there are stunt doubles wearing not-very-convincing wigs throughout half of it? That's part of the charm. The fight is the culmination of months of tension, and that's what makes it so enjoyable. I can't imagine a show waiting so long today to let things boil over, but back in 1982, it was a perfect climax.
Truly one of the classic episodes, this is how television should be.