A:AnswerThe 43UK6300 does have a composite input that is shared with the component input but it is an input and would not be able to send out sound using the port. ^CP
A:AnswerYes it has bluetooth built in. I've noticed when I pair it to a bluetooth speaker, however, the audio is out of sync. I think it has a lot to do with the speaker though.
A:AnswerThe 43UK6300 has a built in web browser to surf the internet with. A list of available applications for the 43UK6300 can be found on the following page: http://us.lgappstv.com ^CP
A:AnswerThe picture is quite acceptable viewed from a 45 degree angle but not quite as good as viewed from straight on. Maybe 100% straight on and 90% from 45 degrees.
A:AnswerThe Standard Remote (Part # AKB75375604) that comes as an included accessory with the LG UK6300PUE 4K HDR Smart LED UHD TV w/ AI ThinQ® - 43" Class (42.5" Diag), Model # 43UK6300PUEhas a Netflix and an Amazon button on either side of the home button of the remote...^IFV
A:AnswerUnfortunately you are not able to play audio via bluetooth and through the TV's internal speakers. You are able to use the TV's internal speakers and external devices connected via an optical cable at the same time. Information regarding using bluetooth headphones with the TV can be found in the User Guide under Tour List of Settings>Sound>Sound Out. https://www.lg.com/us/support-product/lg-43UK6300PUE#manuals ^CP
A:AnswerTo ensure I do things right I will call or travel to Best Buy and talk to one of the Geeks. Then I try YouTube and more often than not I solve the problem. Sorry I could not be more useful.