Happy Clam Day
Trivia
- This is the only episode not to have a different vowel.
- Before the Guppies send the invitation to Sam, Deema starts dancing and singing "Happy Clam Day" in the style of the song "Yankee Doodle".
- Instead of saying "It's me, Molly!", Molly opens the episode with "I'm Molly!" for the second and final time.
- Voice director Maria Estrada makes the guest voice in this episode.
- Instead of saying "It's time for lunch!", Nonny says "Time for lunch!".
- In the UK dub, they changed from "mail carrier" to "postman/postwoman".
- Also in the Latin American Spanish dub, they changed from mail carrier to “cartero/cartera”.
- Though it is reported that Tom Kenny, who is best known for voicing the titular character from fellow Nickelodeon series SpongeBob SquarePants (which is also set underwater), plays Sam in this episode, he is uncredited, even in additional voices.
- The Nickelodeon lightbulb logo and the laughing sound from the 2001 and 2008 split-screen credits logos instead of rebrand current logo from promotional material were used, since it was produced in 2009.
- Nonny doesn't narrate during story time in this episode.
- This is the 1st episode of Season 1 in production code order.
- The Bubble Guppies are singing about mail like in Blue’s Clues when Steve, Joe, and Blue sing the Mailtime Song.
- In Brazil, the lightbulb Got plastered By The 2009 logo.
- This episode was made in 2009.
- Before everyone says good morning to Mr. Grouper, Molly and Gil already arrive.
- After the Pop Song, Nonny appears outside the post office and then swims inside it. We also see both, Molly and Oona waiting in line. Usually, the second person doesn’t appear until after the first person, but in this episode, Oona is shown behind Molly.
- During the story segment, Goby plays both the narrator instead of Nonny and the boss of Zip.
- This is the first episode not to have any bad guys in a story segment.
- This is very similar to Percy's favorite job on the Island of Sodor, delivering the mail.
- It is revealed that Gil’s favorite food is pizza and apple juice during lunchtime. The third one being Swinging in the Rainforest! where he got cheese pizza.
- This is the first time when they received a disco ball. However, disco balls can be used in a Clam Day party as well as beach parties, nightclubs, Quinceañera parties, wedding receptions, bar/bat mitzvahs, homecoming events, bachelorette parties, birthdays, proms, school dances, and other special occasions.