Does it use passive or active 3D glasses?

It uses passive glasses. The 3D image quality is awesome! Crystal Clear with no distortion, I love this TV.

does this have HDMI 2.0 inputs and do they support HDCP 2.2? will it support a 4K input via hdmi running at 60Hz?

There are 2 HDMI 2 inputs, I had to purchase a new HDMI cable for my new Sony 4K Player, my player unconverts even DVD's are upconverted and the picture is awesome!

Questions & Answers: LG Electronics 55UH8500 55-Inch 4K Ultra HD Smart LED TV

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LG Electronics 55UH8500 55-Inch 4K Ultra HD Smart LED TV

Backlight: LED (Direct LED)
Refresh Rate: 240Hz (Effective)
4K Ultra HD
Smart Functionality: Yes
webOS 3.0
Inputs: 3 HMDI, 3 USB
Super UHD Delivering LG's Best 4K LED Experience
Triple XD Engine
HDR Enhanced Display

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