Interesting that the Petries and Helpers were neighbors before they moved to the house where the remainder of the show took place.

Milore... the episode you're looking for iscalled: "That's my boy?" Season 3, Episode 1.
http://www.hulu.com/watch/113980/the-dick-van-dyke-show-thats-my-boyThe Dick Van Dyke show is my ALL TIME favorite comedy TV show, ties with I Love Lucy. Thanks to HULU for running ALL the seasons and episodes!This particular episode is my very much all time favorotie TV comedy episode, this one where Rob goes insane over Laura being pregnant.Attempted Marriage is my second favorite episode.LOVE ALL THESE SHOWS! I wasn't born until 1968, but, I grew up watching the re-runs, and thene eventually got some of the shows on DVD.Little fun trivia fact:I don't recall what episode its in (I'd have to Google it)... but, there is an episode where Rob calls Laura another name (lets just say he calls her Tammy... whatever)... but for some reason, no one knows why... no one caught it, and its just a blooper that was never fixed or caught. Why Dick Van Dyke called her another name, I don't think anyone knows why either.I so much enjoy watching all these shows! Thanks - Hulu !!!!

Which is the episode where Laura thought she brought home the wrong baby and the baby that she thought was her's turns out to be black?

Never missed a episode,I grew up during the sixies thse are the greatest sitcoms .The sitaution comedy will laughon through the age .Long live,Laura and Rob,Buddy,and Sally.Episode 19 where did I come from? Will get your funny bone started.