<human>:  I need to know how to fix a TV remote that no longer turns the TV on and off.
<bot>: First, make sure that the batteries in the remote are still working. You can do this by testing them in another device. If the batteries are fine, then you should check for any obstructions or dirt that may have gotten inside the remote. Use a small brush or cloth to clean around the buttons, as well as the battery compartment. If this does not help, then you may need to replace the remote.