Most HDMI cables work fine for streaming, but a few situations genuinely call for a better one.
For standard HD streaming, almost any HDMI cable will do the job. Higher resolutions and features add requirements that an older or cheaper cable might not meet.
If you're streaming in standard or high definition and everything looks and sounds normal, there's no need to replace the cable that came in the box.
If you have a spare HDMI cable, swapping it in temporarily is the fastest way to confirm or rule out the cable as the cause of a picture problem.
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