A year after Sony's 4K TV launch, the company is detailing the US launch of a revamped collection with HDR-compatible sets. You can now pre-order six models in Sony's new Ultra HD lineup, with deliveries arriving in May. The line starts off with a 43-inch TV that costs $1,299.99, and goes up to a 75-inch behemoth at $7,999.99. Sony isn't talking about pricing for the X900C, reportedly the thinnest LED TV in the world, but it's poised to arrive this summer. It could be worth the wait -- at 5.08mm, it's thinner than your smartphone (unless you're using Oppo's 4.8mm R5). It also has a "Vanishing Edge" technology that makes the picture fill the entire screen.