Charlie and Lola - Season 2 - Eps 16: I Completely Know About Guinea Pigs
When Charlie's parents decide that he is responsible enough to have a pet, he gets a mouse named Nibbles. Both he and Lola soon begin having a lot of good times with Nibbles. They teach him many tricks and he proves to be the cleverest pet on "Bring Your Pet to School Day." When Nibbles passes away, Lola seems more broken up about it than Charlie. Charlie helps Lola to see that he's sad too, to cope with the loss and to ultimately celebrate what they both love about Nibbles.
About Charlie and Lola

Title: Charlie and Lola
First Air Date: 2005-11-07
Last Air Date: 2008-08-23
Status: Ended
Rating: 6.7/10 (from 30 votes)
Language: EN
Seasons: 5
Total Episodes: 78
Network: CBeebies
Genres: Kids, Animation, Family
Production Companies: Unknown
Synopsis
Charlie and Lola is a British animated television series based on the Charlie and Lola books written by Lauren Child. It aired from 2005–2008. The animation uses a collage style that emulates the style of the original books. Three series were commissioned by and initially broadcast on the BBC between 2005 and 2008. The series are produced by Tiger Aspect and have been subsequently broadcast in more than twenty countries. The series has won multiple BAFTA awards.