Back during CES in January, Amazon revealed its smart TVs were getting a rebrand soon. But if you don't  follow CES news  as we do, the April 15 switchover to "Ember" in all of Amazon's smart TV listings might have been jarring. It's been a relatively quiet rebrand for a major product line, so it's valid to feel a little confused. So wait, is Fire TV just called Ember TV now? Well, sometimes. The rebrand is a title change that will unify all Amazon-branded smart TVs under a single recognizable name — Ember. But the Fire TV operating system and streaming app platform, which is still known as Fire TV, isn't going anywhere. Shop the Ember 2-Series, 4-Series, QLED, Mini-LED, and Artline What's the difference between Amazon Fire TV and Amazon Ember TV? Amazon Ember only replaces Fire TV when we're talking about the physical televisions: What were formerly known as Amazon Fire TVs are now Amazon Ember TVs.…