When Amazon made it possible for stand-alone Alexa devices, like the Amazon Echo and Echo Dot, to control the Fire TV and Fire TV Stick, control of Fire TV Edition televisions was not quite ready initially. It is now possible to control the televisions with Alexa as well and Amazon has added a new option in the TV’s settings menu to allow Alexa to turn on the TV. In order for Alexa to turn on the TV, it must remain in a low power state, similar to the Fire TV and Fire TV Stick’s sleep mode, so having the feature enabled will consume a little more power than usual while the TV is off. If you don’t plan to use Alexa to turn on your Fire TV Edition television, it’s probably a good idea to turn the feature off. You can do so from the Settings > Alexa menu on the TV. With the option enabled, giving any Alexa command that relates to your TV, like “Alexa, launch YouTube,” will power on the TV if it is off. Of course, you can also just say “Alexa, turn on Fire TV” if you prefer. See here for a list of other commands that can be used.