to go to the ‘shows’ section and look for whatever you want.
It's important to keep in mind that in order to play content on Atresplayer you'll have to be registered. The registration process is completely free and is done on the website or the app itself. It’s also important to know that, even though registration is free, some content (previous seasons, for example) are for pay.
Atresplayer is a good app for watching TV that works even better if you have a chromecast device handy, as it lets you send all of your content directly to the device’s screen. You can of course, still watch it on any Android device.