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Sorry, there was a problem. Please try again later.Hi lll, thank you so much for your inquiry! If you are referring to the HDMI 4K 120 Hz feature, this can be enabled by changing the HDMI® Signal format of the TV to Enhanced format. Please note: Make sure your device is connected to the HDMI 3 or HDMI 4 input on the TV using a Certified Premium HDMI cable. 1. Select Settings → Watching TV → External inputs → HDMI signal format. 2. Select the input the device is connected to (either HDMI 3 or HDMI 4), and then change the setting to Enhanced format. You may also visit the link below for our instructional video: https://www.sony.com/electronics/support/televisions-projectors-lcd-tvs-android-/xbr-55x900h/articles/00256772 I hope this helps! Thanks! - Romeo
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