Thank you for your question. Depending upon the output port, you'll need (1) a HDMI cable or (2) a DVI to HDMI cable/adapter or, if it's a Mac, (3) Display port to HDMI cable/adapter.
If this didn’t answer your question, please contact us at 1-800-SAMSUNG, or if you want to come through a social media channel, we have a couple options for you:
If you have a Twitter account, go here or to this URL: http://twitter.com/#!/samsungsupport Having a transaction number or model number and serial number handy ahead of time will be helpful.
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