No matter what television you have, Echo can be given the power to control it.
Introducing Fire TV Blaster - Add Alexa voice controls for power and v in 2023
Connecting Echo to Bravia 2015 TVs, by Matt Kenefick
What TV's work with Alexa? —
to bring Fire TV to the Echo Show 15, along with Fire TV widgets, and more
How to Connect Alexa to Your TV for Smart Voice Control
Control Any Tv with Alexa
I replaced my kitchen TV with an Echo Show 15 and I kinda liked it
How to control your TV with Alexa
How to Use Google Home or Echo to Control What's on Your TV
How to Control Your TV with Alexa : HelloTech How
Echo Show 8 (2nd Gen) Smart Display with Alexa
Use Alexa with your Samsung TV or smart monitor