Alex 
https://en.wikipedia.org/wiki/4K_resolution
When digital video discs first emerged in the marketplace in 1995, they were revolutionary in picture quality. They soon took over market domination from VHS. Then, High Definition and Blu-Ray were vying for the top spot in video world. Blu-Ray’s version won even though most critics preferred High Definition. Now, we have high definition televisions, but if you show your old DVDs on them, you will notice terrible quality of your videos. Unless you want to switch to cable or satellite feed where you can consider Dish package comparisons, you will want to improve your DVD picture quality.
- Check your cables. You need to use HDMI cables when connecting your television to your player. If you are using yellow composite cable, you won’t get the high definition. You can have component cables that are red, green and blue to get HD signals. This is the easiest way to improve your video quality. It probably is the least expensive way to get better quality too.
- Change your sources. Even though you have shelled out the money for an HDTV, you aren’t necessarily watching high definition material. You need to upgrade the source. If you are watching a movie, you need to use a Blu-ray player. A Blu-ray disc offers resolution of six times improvement over standard DVDs. Converters that can change your standard DVDs into HD aren’t as good as a Blu-ray player. If you are watching television, you will need to upgrade your television service, so you get HD. You can get free HD if you buy the right antenna.
- Fix your settings. You could have a Blu-ray player, HDTV or cable hookup, but you still might not be getting HD. You need to change the settings on your cable or satellite box to say output HD. Usually, the number is 1080i. Although it should set it automatically, you shouldn’t assume that what should happen is what does happen. In the menu, look for aspect ratio to adjust your setting. You also want to make sure you use the correct channel. While standard delivery is usually one number, sometimes, the providers will have a separate one for the HD channel. If you want to keep your current DVD player, you need to ensure it is set for 16×9 instead of 4×3.
- Adjust television settings. You will want to go through your choices for contrast, etc. to get the best picture quality. Often, you will want movie or cinema mode. Sports or Vivid are good choices for better picture quality too.
- Use more advanced television settings. After you have exhausted these tips, you will want to get a trained television calibrator, which will change your color temperature. This is the best way to ensuring you’re getting the best performance from your TV. HD calibration is the right tool to use in this situation. Not everyone can perform this calibration on their HDTV.
- Buy new discs. You can get many movies and television shows on high definition formats. You can replace many of the old DVDs with high definition ones. This can be a costly enterprise, though. It would ensure that your DVDs give you the best quality for your HDTV.
You also will have to check the recording function because you might have lower quality when you record and make sure you follow tips regarding your connections. Follow these tips and you will improve your DVD quality on your HDTV.
