There are many reasons why the picture in your TV is distorted. It may be that the pixels are not all aligned and there are some reflections on the screen. It may also be that the television has been left on for a long time in a room or the phosphor which is used to send the signal from the TV to the monitor can become damaged. Another reason why your picture is distorted is that your TV has been modified in any way, for example old televisions used a cathode ray tube which could become damaged. In all these cases it is the technology which is used on your TV which makes the difference and if you have a modern television then it will probably be the LCD or LED television as opposed to the old. This has a new set of issues.
Your TV may be distorted because your television has not been connected to a digital source or strong internet connection. Digital signals do not use electron beams but rather they use binary codes to transmit their information. If your TV was connected to a digital source then the picture would be very clear and the only problem would be if the signal was interrupted or if your television set were to receive an electric shock. You may also want to get the quality of your aerial checked and a TV Aerials Swansea company such as One Vision Tv Aerials can help you out with this.
If your TV was not connected to a digital source then the signals which are sent out from your television set are in the form of binary data that has been scrambled. To fix this problem the television sets operating system will need to be reset or changed. Some televisions also have the ability to convert the analog signal into digital, which will fix the scrambling problem. Some TVs use an analog signal but this is very rare