I am having the Echo Show. It has built in Zigbee, Bluetooth and Wi-Fi. I would like to connect with my Samsung QLED 55 Smart T.V to turn On Off, change channels and basically everything the T.V remote does. Right now The Echo Show can only turn Off the T.V and nothing else. Why? What else is needed for complete integration with the T.V? I know it is possible to get the Samsung SmartThings Hub into play with Alexa but what is the point of having two hubs....
It depends on how your TV receives the control signals if it uses an infrared controller then you would need an IR blaster to control the TV. If it has built in "chrome" it can be controlled directly from google home devices but not Alexa.
I could not find an Alexa skill but It may be possible to use ITTTT.
Post the exact TV model to see if anyone can help.