Watch Apple TV on a Samsung

What model (and year) is that Samsung TV? Select newer models may support the Apple TV app natively.

• Best choice would be the Apple TV set-top box. Get the 4K model if you have a 4K TV or plan to get one in the near future. Besides the Apple TV app, you would also access to other features and services, including thousands of third party apps.
• Select model Roku and Fire TV streaming devices also support the Apple TV app.

Devices you can use with the Apple TV app and Apple TV+ - Apple Support

If it is a 2018 or new Samsung OLED TV simply update the TV's firmware and you will likely have Apple TV. If you don't have a qualifying Samsung, then purchase an Apple TV 4K or Apple HD box. If you get either you will qualify for 1 year of Free Apple TV +, which has original Apple content.