Sky has created an FAQ page for blue Max and blue Premium customers. They explain the procedure if you want to use the blue Premium/Max Sky Show.
Here is the link: [https://support.sky.ch/hc/de/articles/8910483246492-blue-Max-und-blue-Premium](https://support.sky.ch/hc/de/articles/ 8910483246492-blue-Max-and-blue-Premium)