Why is my Sharp LED TV picture quality good on some channels but poor on others?
- WWilliam CookAug 30, 2025
If the picture quality on your Sharp LED TV is good on some channels but poor on others and the sound is fine, the problem may be due to a weak signal from the broadcaster or cable TV provider. If you connect to cable or satellite TV without a set-top box, consider installing one to improve signal reception and picture quality. Contact your cable or satellite TV provider about upgrading to a set-top box.