[Hulk] has your back with this simple but effective IR Remote Tester / Decoder. How to connect the TSOP4838 to an Arduino to read the transmitted codes By using a cheap integrated IR receiver ...
However, if you've misplaced your remote, you might be in a bind. Thankfully, Apple TV has made it easy to recover your remote if the kids have hidden it, or the couch has eaten it. With iOS 18 ...