Question about Philips 40PFS6009/12

The Zattoo app can only be installed on this TV if it is available in the App Store of the device, which depends on the region. The TV runs on the TITAN OS Smart platform, which supports various apps, but Zattoo is not guaranteed to be pre-installed or available. If the app cannot be found in the App Store, it is probably not compatible or requires a non-recommended alternative installation method such as sideloading.