No matter what television you have, Echo can be given the power to control it.
How to Control a Fire TV with Alexa (with Pictures) - wikiHow
Control Your TV with Alexa & DISH Hopper
Fire TV Blaster - Add Alexa voice control to entertainment devices (requires compatible Fire TV and Echo devices)
Sound Upgrade: How to Use Your Echo as a Speaker for Your Television
Alexa: How to start a smart home - The Verge
Fire TV Cube with Alexa announced, allows you to control your TV without a remote
How to control your TV with Alexa: Use your Echo with a Fire TV stick
How to pair an Echo speaker with a Fire TV
Connect your TV to the Alexa app
Echo Show 15 with Fire TV hands-on: 's largest smart display can now double as a TV - The Verge
Control your Fire TV with Echo. Here's how - CNET
Fire TV Cube review
How to play audio from Fire TV on Echo. wirelessly - Tech Advisor
Control Your Ring Doorbell or Security Camera with Alexa
Harmony and Alexa