Every TV today has at least one HDMI port on the side or back. It’s used to stream content from another device to your television—whether that’s a streaming device, tablet, or computer.
However, if you have a newer TV, you’ll likely see “ARC” or “eARC” next to one of the HDMI ports. While most people overlook these labels, they offer significant advantages over a standard HDMI connection. Using them correctly can improve your audio setup and help keep your space cleaner.
You’re plugging into the wrong HDMI port
Though they may look similar, your HDMI ports have different capabilities
On most TVs, every HDMI port looks the same, which can lead to the assumption that they all have the same capabilities. However, that’s not the case, with some ports being designated for specific functions.
One of those functions is audio return, and using the wrong port can limit your setup. The easiest way to tell the difference is by checking the labels next to each HDMI port.
Quiz
HDMI, DisplayPort, and beyond
Trivia challenge
From HDMI to DisplayPort — see how much you really know about the cables and connectors powering your screens.
HDMIDisplayPortConnectorsStandardsVideo Tech
Which version of HDMI first introduced support for 4K resolution at 60Hz?
That's right! HDMI 2.0, released in 2013, was the first version to support 4K at 60Hz with up to 18 Gbps of bandwidth. HDMI 1.4 could do 4K but only at 30Hz, which felt noticeably choppy for most content.
Not quite — the answer is HDMI 2.0. While HDMI 1.4 introduced 4K support, it was capped at 30Hz. HDMI 2.0 bumped bandwidth to 18 Gbps, finally enabling smooth 4K at 60 frames per second.
What…