How do I remove the retail banner from my Insignia NS-40D420NA16 LED TV?
If your Insignia LED TV displays a retail banner, you selected Store Display Mode when you ran the Easy Setup wizard. Run the Easy Setup wizard again and select Home User Mode on the Viewing Environment screen.
Why is picture quality good on some channels and poor on others on Insignia LED TV?
If your Insignia LED TV picture quality is good on some channels but poor on others and the sound is good, the problem may be a weak signal from the broadcaster or cable TV provider. If you connect to cable without a set-top box, you may need to install a set-top box to improve the signal reception and picture quality. Contact your cable TV provider about upgrading to a set-top box.
Precautions for safely handling the TV's glass screen and internal liquid.
Instructions for connecting cable or satellite TV boxes.
Guide for connecting and using USB flash drives.
Guide to adjusting various picture settings for optimal quality.
Instructions for customizing sound modes and levels.
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