To program your new Roku remote, you'll need to follow a few simple steps. First, make sure your Roku device is turned on and connected to your TV. Then, insert the batteries into your remote and point it at the device. You'll see a prompt on your TV screen asking you to pair the remote.
Now, press and hold the pairing button on your remote until the light on the remote starts flashing. This might take a few seconds, so be patient! Once the light is flashing, release the pairing button and your remote should be paired with your Roku device.