It seems a lifetime since video aficionados became as animated about a set top as industry news outlets have about the new Nvidia Shield TV, despite the third generation Android TV streaming device leaning heavily on a taboo term – 4K upscaling. Upscaling HD video to 4K is par for the course in most modern 4K TV sets, yet it isn’t uncommon to hear 4K upscaling referred to as fake 4K, However, we feel the practice of upscaling content to 4K is becoming more accepted in the industry with benefits to various parties involved in the chain. Nvidia claims its own method of upscaling uses artificial intelligence, although the company has been naturally vague about the AI element here, describing…