I'm experiencing a problem with my fire TV. The movies and show I watch only.last a few minutes and then shut off. What's the deal .
Are you watching from Prime Video? Purchased videos? Using a streaming app like Netflix, AMC, Hulu, etc?
Try to restart your Fire TV if you haven't yet. (steps here, if needed)
Try clearing the data for the app you're using:
Settings > Applications > Manage Installed Applications > Prime Video (or the affected application) > Force Stop > Clear Data
Clearing the data of a 3rd party app will log you out so you may need to log in again.
Hope this helps.
Contact Amazon Customer Service here: https://www.amazon.com/contact-us