How can image resolution in a television system be improved?

Improving image resolution in a television system is best achieved through increased bandwidth. Bandwidth refers to the amount of data that can be transmitted in a given time frame, which directly impacts the ability to convey detailed information in each frame of video. When bandwidth is increased, more data can be sent, allowing for finer details to be displayed in each image. This enhancement leads to sharper and clearer images because higher bandwidth can support more complex signals that carry additional resolution information.

In the context of image resolution, if the number of scan lines is reduced, it would lead to a lower resolution because there would be fewer lines to create the image, resulting in a less detailed representation. Similarly, decreasing bandwidth would limit the amount of visual information that can be transmitted, negatively impacting image clarity and resolution. Therefore, increasing the number of scan lines alone is not sufficient without adequate bandwidth to support them, as each scan line requires data transmission capabilities to render high-quality images.