A:Answer Hi Gayla,
Thank you for your interest in the XR-55X90K. The distance between the mounting holes of the existing wall-mount bracket and the mounting holes on the back of the TV should match. If your current wall mount bracket is VESA compliant with a hole pattern of 11.81 x 11.81 inch (300 x 300 mm), then you can use it to mount the 55" X90K. If they don't, we recommend that you purchase a compatible wall mount bracket (SU-WL855). Please also note that your mount needs to be able to support the TV weight which is 38 lb 5.8 oz (17.4 kg).
Select a connection method below according to the specifications of the home theater system you want to connect.
• HDMI connection (we recommend authorized Premium High Speed HDMI Cable(s) for optimum performance)
• Composite video output (yellow, red, & white)
The composite input on the TV will require a 3.5 mm AV to 3 RCA composite cable.
Descriptions about connecting devices to the TV are also available on the Sony support website. Refer to it as necessary.
https://www.sony.com/electronics/support/televisions-projectors-lcd-tvs-android-/xr-55x90k/articles/00231150
Regards,
Jess
