A:AnswerThe specs state "One Connect Box with 16.4' fiber optical cable". There is only one cable to connect from the one connect box to the TV. All the HDMI connections from your other devices will connect into this box.
A:AnswerNo. FYI: To watch anything in 3D you'll need a 3D-compatible TV and a source capable of delivering 3D content to the television--most often a 3D Blu-ray player like you have or perhaps a cable or satellite box, game console or streaming video device. Again the TV and source must be 3D capable
A:AnswerYes of course! It supports up to 240Hz soooo, you can even plug in a high-end PC and it won't catch up. Xbox One X and PS4 Pro look amazing with 4K on, upscaled to 8K.