Samsung PN59D6500DFXZA - Manual (Page 270)

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Issues Solutions and Explanations
The TV image does not look as
good as it did in the store.
• Store displays are all tuned to digital, HD (high definition) channels
• If you have an analog cable/set top box, upgrade to a digital set top box.
Use HDMI or Component cables to deliver HD (high definition) picture
quality.
• Cable/Satellite subscribers: Try HD channels from the channel line up.
• Air/Cable Antenna connection: Try HD channels after performing an Auto
program.
N Many HD channels are up scaled from SD (Standard Definition)
contents. Look for a channel that is broadcasting true HD content.
• Adjust the Cable/Sat box video output resolution to 1080i or 720p.