A:Answer This will work well with 4K tvs only. If the fire-stick tv image is blurry, either the fire-stick tv is an old low resolution one (don’t know if this even exists) or is not working properly, or the tv HDMI port is not working properly. HDMI is still High resolution and the image shouldn't be blurry, unless the content is low resolution. I recommend you verify this first by making sure the tv, cable box and fire-stick tv settings are properly configured and also verify all the devices capabilities. If your service provider box is 4k and the tv is 4k, this cable will give you the UHD image you are looking for.