Typically you'd buy a receiver to take all the HDMI inputs and power speakers and control which source went to the TV via a single HDMI cord. My receiver has so

Typically you'd buy a receiver to take all the HDMI inputs and power speakers and control which source went to the TV via a single HDMI cord. My receiver has something like 6 HDMI ports. Smart TVs have attempted to invert this relationship by accepting HDMI and splitting audio out to the receiver, but you don't have to play along.