When does Big Mouth return?

The first season, consisting of ten episodes, premiered on Netflix on September 29, 2017. The second season was released on October 5, 2018. The third season was preceded by a Valentine's Day special episode on February 8, 2019. The fourth and fifth seasons will be released on December 4, 2020. A spin-off series titled Human Resources debuted on March 18, 2022.