Dish’s Hopper 3 DVR uses 4K to watch four HD games at once

Dish has been pushing its placeshifting and ad-skipping Hopper DVR for a few years now, and now it's ready to unleash the biggest upgrade yet. The Hopper 3 is ready for 4K — there's already a Joey 4K, introduced last year — and it has 16 tuners, wh…