Does it matter which HDMI port you use on your TV? Short answer: Yes

This guide explains that HDMI ports differ in capabilities, detailing HDMI 2.0 vs. 2.1 (including 4K60 vs. 4K120, VRR, ALLM) and the use of ARC/eARC for audio return, then shows how to match devices like soundbars, consoles, PCs, and streamers to the appropriate TV ports. It advises checking port labels and manuals, outlines common port layouts by TV brand, and highlights that using the wrong port won’t damage devices but can limit performance or audio features like Dolby Atmos. It also notes the backward-compatible, higher-bandwidth HDMI 2.2 standard announced for future devices.