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Poor TV picture quality
Fuzzy people and grainy landscapes have become the norm when you watch TV, and you want to know how the TV picture quality has gotten so bad. There are a few simple explanations for why you may be experiencing poor tv picture quality. Here are the 3 most common reasons that you can check for and correct yourself whether the TV picture quality degraded suddenly or over time.
1. Dust on interior projection TV components
Blowing air into the lamp area to clear dust in newer projection TVs could cause dots to appear on your TV's picture, lowering image quality.
Do not attempt to clean the lens of dust as lenses in these newer models are sensitive to streaks, which could worsen your TV picture quality.
Blowing dust around could also cause it to invade the sealed light engine and result in an expensive repair.
If you worry about the dust buildup, have a TV repair pro address your concern.
Note: Lenses in older CRT projection TVs can be easily cleaned to improve picture.
2. Loose cable/satellite TV connections
Unplug the TV. Use a can of compressed air to clean out dust via the air vents. Check that each connection is pushed in completely, and tighten these connections with your fingers:
- TV receiver cable connections
- Coaxial connections
- Cable box connections
- Wall jack connection
3. HDMI cable required
Purchase a quality HDMI cable to make the most of your HD experience. HD-supported equipment is likely downscaled to standard resolution otherwise.
Tips to get the best TV picture quality
Make sure that the connectors on all of your equipment (converter box, television, VCR, DVD) are tight.
Replace your coaxial cables with AV cables that plug into your equipment. This can improve the overall audio/visual quality that you are getting, and also increase your ability to take advantage of programming delivered in high definition or digital formats.
Avoid positioning appliances or other electronic devices close to your television. These devices are capable of emitting electromagnetic fields that cause diminished picture quality such as green field appearing on your screen.
Ensure that the cable lines run in your home are of good quality (RG-6 cable or comparable).
Splitting too many televisions from the same cable or drop line creates signal degradation, resulting in poor quality audio and video.
Still having issues with your TV? Check out our comprehensive TV picture problems troubleshooting guide.
✓ Reviewed and approved by Repair.com expert Greg Roth, general manager, Roth’s.