The most confusing aspect of the RC-799M for new users is the system. The remote acts as a universal controller, managing the receiver, a TV, and other input devices.
Because one day, when the HDMI handshake fails and your smart TV asks you to agree to a new privacy policy, you will walk over to your vintage Onkyo rig. You will pick up the gray brick. You will look at the cheat sheet you taped to the back. onkyo rc-799m manual