I test 4K Blu-rays for a living and these are my 6 picks from Amazon's big sale, including reference-level discs from Disney, Marvel, and 20th Century Studios that I use for AV testing

<p>James is the TV Hardware Staff Writer at TechRadar. After studying English Literature and Creative Writing at Bath Spa University, he rekindled a childhood love for writing and creating stories that soon translated into the world of freelance writing, primarily for music blogs. Eventually getting into the world of TV and hi-fi, James honed a knowledge and passion for all things audio and visual.