'Life in Pieces' Gets Animated in Hilarious 'Chicken and the Egg' Sequence (Exclusive)

The CBS comedy's animated piece has been in the works since season one.

Life in Pieces is getting animated -- and only ET has the exclusive details. 

The veteran CBS comedy will take an unconventional turn when it returns on Thursday, as the episode will feature an animated sequence when Sophia (Giselle Eisenberg) asks Matt (Thomas Sadoski) and Colleen (Angelique Cabral) about having children. 

Though unusual for the show and primetime TV in general, the sequence had been tossed around by writers since season one of Life in Pieces. They finally decided to go ahead with the project while breaking stories over the summer, beginning animation in September and receiving the final picture in December -- and it couldn't be more perfect. 

Each family member appears as an animated farm animal in the "Chicken and the Egg" sequence, which tells the story of the wedding between "Chickolleen" and "Matt-a-doodle-doo." 

John and Joan the sheepdogs (James Brolin and Dianne Wiest) were of course in attendance, as well as Heather the stay-at-home goose (Betsy Brandt), and her husband, Tim the tractor (Dan Bakkedahl), joining Jen the fox (Zoe Lister-Jones) and her husband, Greg the defensive duck (Colin Hanks). 

Watch the exclusive clip above, and tune into Life in Pieces on Thursday, Jan. 4 at 9:30 p.m. ET/PT on CBS, to see the episode's big reveal. 

See more from Life in Pieces in the video below.