They started Going Seventeen in 2017 and they also had Going Seventeen Spin-off in 2018, but they were mostly behind the scenes content. So starting from 2019 they wanted to change their concept, so from episode 3 on for the most part the content of Going Seventeen changed to more like variety content based on their ideas as you're seeing in episode 3/4 of 2019, and Inside Seventeen is behind the scenes now.