Can't figure out if there is a HDMI-CEC setting on tv. I have the Costco TCL 55S434 and plugged Roku Streambar Pro into the HDMI (ARC) and I can't power it on/off
What is HDMI CEC?
How to Use the HDMI-ARC port on a Samsung TV | Samsung Singapore
Amazon.com: BlueRigger HDMI CEC Less Adapter (4K UHD, ARC,1080p, Ethernet, Male to Female CEC Blocker) - Compatible with HDTV, TV Stick, Chromecast, Nintendo Switch, Xbox, PS5, Laptop, PC, Game Console, Soundbar :
What Is HDMI-CEC (Consumer Electronics Control)?
What can HDMI Cables do? ARC and CEC explained
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
HDMI CEC vs ARC: In Depth Comparative Analysis and Facts -
Samsung Smart TV: How to Turn On 'HDMI - CEC - ARC' (Anynet+) - YouTube