"Connecting your devices to a TV with HDMI is easy enough. Plug your cable in, and you're good to go, right? Not so fast, my friend. In reality, getting the best performance out of your TV takes a bit of effort. Over the years, I've picked up some handy HDMI tricks that make a real difference in picture and sound quality. Here's what I do and why it matters."
"Identify high-bandwidth ports: Check your TV's HDMI labels for terms like "4K 120Hz," "8K," or "HDMI 2.1." If you don't see any, they're likely standard HDMI 2.0. When in doubt, check your user manual. HDMI 2.1 ports support higher resolutions and frame rates, so plug devices such as your PS5 or gaming PC into these, and you'll unlock advanced features like VRR."
"Use the ARC/eARC port for audio: If you have a soundbar or home theater receiver, plug it into the HDMI port labeled "ARC" or "eARC." I always use the eARC port on my TVs at home when connecting soundbars. That's because eARC is the newer, higher-bandwidth version and supports uncompressed, high-bitrate audio like Dolby Atmos, DTS:X, and other lossless form"
HDMI ports vary in capability, with some supporting HDMI 2.1 for higher resolutions and refresh rates while others remain HDMI 2.0. High-bandwidth ports should host gaming consoles and PCs to enable features such as 4K/120Hz and VRR. The HDMI port labeled ARC or eARC should connect soundbars or receivers to allow uncompressed, high-bitrate audio formats including Dolby Atmos and DTS:X. Checking HDMI labels and consulting the TV manual helps identify port capabilities. Using appropriate cables and confirming TV settings prevents audio/video issues and yields better overall picture and sound performance.
Read at ZDNET
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