When using TV-Out function, the resolution shown on TV screen is either unclear or kind of fuzzy compared to that of fine resolution shown on regular CRT monitor. Why?

The observed output resolution lies in design and feature differences between TV and CRT monitor.

1. In general, a 17" CRT monitor with 0.27mm dot pitch for crystal clear images, but TV only has horizontal line distance-to-distance.
   
2. CRT monitor supports high resolution output & refresh rate. But on the other hand, TV only has low scan line.
   
3. CRT monitor and TV's Video's amplify specification is different.