HD televisions, or high-definition televisions, offer a clearer and more detailed picture compared to standard-definition TVs. They typically have a resolution of 720p, 1080p, or even higher, which means they can display more pixels on the screen. This results in sharper images and vibrant colors, enhancing the viewing experience for movies, sports, and video games. Many HD televisions also come with features like smart TV capabilities, allowing users to access streaming services and browse the internet. Additionally, they often support various input options, such as HDMI and USB, making it easy to connect devices like gaming consoles and Blu-ray players.