A:AnswerHi DarkAgent. Regrettably, input lag is not an official TV specification so it is not listed for the LG UK6090PUA 4K HDR Smart LED UHD TV - 55'' Class (54.6'' Diag), Model # 55UK6090PUA. You might be able to find online reviews who test the TVs that are sent to them who test the TVs for input lag and post the results on their sites. There are different methods for testing for input lag so the results will vary depending on which method is used. The reviewers will identify the method they use to test the TV...^IFV
A:AnswerHello, this TV is manufactured for use in the USA and does require 120Vac for optimal operation, however, the TV can withstand up to 240Vac with an adapter if needed. ^CP
A:AnswerThe stand legs for the LG UK6090PUA 4K HDR Smart LED UHD TV - 55" Class (54.6" Diag), Model # 55UK6090PUA have a width of 44.4" and a depth of 9.3". ^CP
A:AnswerThank you for reaching out. For best assistance with your inquiry, we recommend reaching out to Best Buy directly. Their phone number is 1-888-BEST BUY (1-888-237-8289). ^CP
A:AnswerThe 55UK6090PUA features Screen Share and Content Sharing. You can find information about these features here: https://www.lg.com/us/support/help-library/screen-share-screen-mirroring-device-to-tv-CT10000018-20150637965681 ^CP
A:AnswerThe Optical Digital Audio Out in the back of the LG UK6090PUA 4K HDR Smart LED UHD TV - 55'' Class (54.6'' Diag), Model # 55UK6090PUA is the only audio out port on the TV. HDMI In 2 also supports HDMI ARC functionality so if the device you are connecting the TV to also has an HDMI port that supports HDMI ARC functionality, you can send audio upstream or downstream via the same HDMI cable...^IFV
A:AnswerWe hate to hear that, but would love to be able to help. We would be happy to see what's going on. Drop us a line on Twitter at @LGUSSupport or on Facebook https://www.facebook.com/LGUSA/ so we can get more info and see what we can do. ^CP
A:AnswerHello, this TV is manufactured for use in the USA and does require 120Vac for optimal operation, however, the TV can withstand up to 240Vac with an adapter if needed. ^CP