Close-captioning displays both "Whoopie World" and "Whoopee World" in "Promises, Promises."
Mr. and Mrs. Bleakman are shown helping to build Clifford's doghouse in "Welcome to the Doghouse," yet in "Welcome to Birdwell Island," Clifford bounds out of his doghouse when he meets them for the very first time.
Jetta: All that waiting for Jenny made me hungry.
Jetta: I guess I have some apologizing to do, Mac.
Jetta: You can't tell someone you're going to do something and then not do it.
Emily Elizabeth: What a beautiful day. I sure wish Jetta and Mac had come with us.
Jetta: (to Mac) Fine, just be mad at me then. I'm going to have fun at Whoopie World, no matter what happens.
Jetta: How often do I get a chance to go to Whoopie World with Jenny Wincole?
Emily Elizabeth: We'll have a picnic and see the baby seals. It'll be fun.
Jetta: Ew! Dog drool all over my new squiggle stick.
Emily Elizabeth: Oh, Clifford. This is the best doghouse in the whole world.
Emily Elizabeth: (tired) Clifford, we've just got to get you a doghouse.
Emily Elizabeth: You're always ready to help, aren't you boy?
Clifford: Woof. Woof.
Samuel: Once you've met Clifford, he's kind of hard to forget.
Mrs. Bleakman: A big dog can be a big help.
Mr. Bleakman: Hmpf. I'm just glad we didn't have to ride on his back.
Mr. Bleakman: I keep forgetting just how large that red beast of yours is.
Emily Elizabeth: You know, Clifford, I think it's time we get you a doghouse.
Emily Elizabeth: (to Clifford) I've always loved taking care of you, no matter what size.
Neither Cleo nor T-Bone have speaking parts in either of these episodes and both are not credited at the end of the show.
Clifford's Big Idea: Be Responsible
Speckle Story: Speckle and the Cloudy Day
The title, Welcome to the Doghouse, is a possible reference to the song, Welcome to the Jungle.