How to connect Apple TV to Apple remote

1. Point your remote three inches away from your Apple TV.
2. Press and hold Menu or Back and Volume Up for five seconds.
3. If asked, place your remote on top of Apple TV to complete pairing.

Do you have a replacement remote to pair with Apple TV?

If your Apple TV remote isn't working - Apple Support

Do you have an iOS device to use the software remote with Apple TV?

Set up the Apple TV Remote on your iPhone, iPad, or iPod touch - Apple Support