If your Switch Dock isn’t connecting to your TV, start by checking the basics. Ensure the dock is plugged into a power outlet using the official Nintendo adapter—third-party adapters may not provide enough power. Check the HDMI cable: use the official Nintendo HDMI cable, and ensure it’s firmly plugged into the dock’s HDMI OUT port and the TV’s HDMI IN port. Try a different HDMI port on your TV—some ports may be faulty. Power cycle the dock and TV: unplug both devices for 30 seconds, then plug them back in. Update your Switch’s system firmware to the latest version, as outdated software can cause connectivity issues. If the dock still doesn’t connect, check for physical damage—look for bent pins in the HDMI port or cracks in the dock. Contact Nintendo Support for repair if the issue persists.