Hi Megan B,
We appreciate you reaching out to us. We're glad to hear that you've already performed some steps to troubleshoot the issue.
We’d like to gather additional details that may help us be in a better position to assist you.
Have you had the chance to confirm if your TV is an Apple TV App supported device?
Watch on Smart TVs and streaming devices - Apple Support
Also, did you use the same steps below to get the Apple TV app?
- "Go to your device's app store and search for the Apple TV app or Apple TV+ app. If you don't see the app that you're looking for, check your device's compatibility.1
- Download the app.
- Open the app and follow the instructions to complete setup."
You can use the article below as a reference.
Get the Apple TV app or Apple TV+ app on your smart TV or streaming device - Apple Support
If you answer yes to both questions, the next best step is to reach out to the manufacturer of your TV.
As mentioned in the article below, "If you need help, you can contact the manufacturer."
If you can't watch or stream movies and TV shows in the Apple TV app - Apple Support
Take care!