The way I control my TV is with the Echo commanding a fake Phillips hue bridge running on my living room computer. So when I say "Alexa, Turn on the TV", it will trigger the "the TV" macro running in my EventGhost program running on the computer. That macro is setup to turn on the TV, turn on my receiver and launch the windows media center app in Live TV mode. This is all done via an IR transmitter, plugged into USB, that the EventGhost app can control. It works beautifully, every time. I didn't set anything else up, because I think using the remote is much easier to change the volume or channels.