Designing a site that works well on WebTV can lead to a smart interface for all your users, regardless of which browser they're using. The most obvious difference between WebTV and PC browsers is the display. You aren't dealing with a high-resolution monitor viewed from a foot or two away. While the screen size of a TV is typically larger than a computer monitor, the detail isn't as fine and the content is usually being looked at from across the room. This means you need to think in broader strokes.
Text can be a difficult element.
If the font size is too small, the lines of the letters will blur and be impossible to read, no matter how close you're sitting to your TV screen. It can't solve every problem, though, so be careful if you're relying on a tiny typeface for your key content, especially the central navigation. A good tool to have is the NTSC filter in PhotoShop. The National Television Standards Committee sets the standards for TV and video in the United States, and these standards don't particularly agree with a computer's RGB display. The NTSC filter will take an RGB image and convert it to something color-friendly for television.