2016 | 7 Episodes

Season 0 of What on Earth? premiered on March 26, 2016.

2015 | 6 Episodes

Season 1 of What on Earth? premiered on February 10, 2015.

2016 | 6 Episodes

Season 2 of What on Earth? premiered on January 25, 2016.

2016 | 20 Episodes

Season 3 of What on Earth? premiered on November 15, 2016.

2017 | 20 Episodes

Season 4 of What on Earth? premiered on October 17, 2017.

2019 | 10 Episodes

Season 5 of What on Earth? premiered on January 8, 2019.

2019 | 9 Episodes

Season 6 of What on Earth? premiered on June 6, 2019.

2020 | 11 Episodes

Season 7 of What on Earth? premiered on January 9, 2020.

2020 | 9 Episodes

Season 8 of What on Earth? premiered on August 27, 2020.

2021 | 10 Episodes

Season 9 of What on Earth? premiered on March 11, 2021.

2021 | 10 Episodes

Season 10 of What on Earth? premiered on October 24, 2021.

2022 | 10 Episodes

Season 11 of What on Earth? premiered on June 22, 2022.

2023 | 10 Episodes

Season 12 of What on Earth? premiered on January 12, 2023.