What characteristic defines HDTV compared to other TV standards?

The defining characteristic of HDTV compared to other TV standards is its capability to deliver more pixels and a wider aspect ratio. HDTV typically offers a resolution of 720p, 1080p, or even higher, which provides a significant improvement in picture clarity and detail over standard definition (SD) formats. The wider aspect ratio, commonly 16:9, allows for a more cinematic viewing experience, accommodating modern content designed for this format.

This increased pixel count results in sharper images and finer details, enhancing the overall viewing experience. While other formats may have lower resolutions and narrower aspect ratios, HDTV stands out for its ability to render high-quality visuals that align well with contemporary broadcasting and media consumption practices.