The Samsung App Store, which is accessible via the Tizen OS operating system on Samsung Smart TVs, is not exactly the same for all devices. There are differences depending on the model, age and region. The user interface, available apps and functions may differ depending on the TV model and its year of manufacture, as may the availability of certain content and services, which may vary from region to region. In addition, the range of apps and the Smart Hub interface may change over time due to updates.

To summarise:
- Samsung Smart TVs use the Tizen OS with the Samsung App Store (Smart Hub).
- The app selection and user interface may vary depending on the model and year of manufacture.
- Regional differences affect the availability of apps and services.
- Updates can change functions and apps in the store.
- A Samsung account is usually required to access all functions.

This means that the Samsung App Store is not identical for all Samsung TVs, but differs depending on the model, age and region.