Comcast isn’t the only operator dabbling in 4K or Ultra HD. Last month, Time Warner Cable successfully streamed a live 4K signals at 60 frames-per-second from the NY1 studio in NYC to the Las Vegas Convention Center using next-gen set-tops and Sony 4K cameras. Still think 4K is a Jetson-like idea light years away? Consider that 4K cameras for consumers are already available for a few thousand, and Sony is taking pre-orders for its Ultra Media Player (early adopters get it for $499 vs MSRP $699). The box, expected to ship in July, supports Sony’s Video Unlimited 4K service (more than 200 Sony Pictures films) as well as Netflix ’s 4K streaming.