4K Streaming Requirements: Everything You Need for True 4K
TV, HDMI port, cable, device, internet speed, plan and settings: the complete 4K checklist, plus how to prove you're really getting 4K.
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Picture & Sound Quality
4K, HDR, Dolby Vision, bitrate and Dolby Atmos explained — what each one means and what you need to actually get it.
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More picture & sound quality guides
HDR10 vs Dolby Vision vs HDR10+: What's the Real Difference?
Static vs dynamic metadata, brightness, colour depth and device support — what actually separates the HDR formats, and how much it matters on your TV.
Video Bitrate Explained: Why Some 4K Looks Better Than Others
Why bitrate matters as much as resolution, how codecs change the equation, and what typical HD and 4K streaming bitrates look like in practice.
Dolby Atmos Streaming: How to Get 3D Sound at Home
What you need for Dolby Atmos from streaming apps — plan, device, HDMI connection and speakers — and the settings that stop it silently falling back to stereo.
Adaptive Bitrate Streaming: Why Your Picture Quality Changes
Why streams start soft and then sharpen, how players decide when to switch quality, and practical ways to help your device stay at its best.