A:AnswerTV manufacturers do not list contrast ratios for TVs anymore because they was never a standard for measuring contrast ratio so the numbers were meaningless. Our specifications do not show contrast ratios for the LG UK6090PUA 4K HDR Smart LED UHD TV - 49" Class (48.5" Diag), Model # 49UK6090PUA...^IFV
A:AnswerIt's a smart TV but does not have Roku. It would be easy to add that by purchasing a Roku stick and plugging it in to an HDMI port in the back.
A:AnswerThe 49UK6090PUA does not have a headphone input. We would be happy to help you find a TV that best fits your needs. Our support team is available via Twitter @LGUSSupport, Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP
A:AnswerHello, the 49UK6090PUA has the follow features that the 49UJ6300 does not: HDR10, HLG, Google Home Compatible, Amazon Alexa Compatible, Wi-Fi® Built In, Wi-Fi Direct, IP Control and Simplink (HDMI CEC). ^AC
A:AnswerThe 49UK6090PUA has the following input/outputs for connecting external devices: HDMI (HDCP 2.2), Audio Return Channel Support (via HDMI), USB v 2.0, RF In (Antenna/Cable), Composite In, Ethernet, Digital Audio Out (Optical). ^CP
A:AnswerAll of the HDMI ports on the LG UK6090PUA 4K HDR Smart LED UHD TV - 49" Class (48.5" Diag), Model # 49UK6090PUA are HDMI 2.o ports and all of them are HDCP 2.2 compliant...^IFV
