What external devices do you need to buy to connect to your receiver ... one-cable transmission of audio and information to and from the TV to simplify home theater setups, but the eARC upgrade ...

an AV receiver is the beating heart of a home theater system. You’ll be hard-pressed to wire up any bookshelf speakers, floor-standing speakers, or subwoofers without one of these bad boys!

If you’re serious about bringing theater-like sound into your home then an AV receiver is the best choice ... music streaming capabilities, and they connect to your TV via HDMI.