What resolution is commonly associated with HD television?

The resolution commonly associated with HD television is 720p. This resolution signifies a display with 1280x720 pixels, which is considered high definition. 720p provides a clearer and more detailed image compared to standard definition resolutions like 480p, making it suitable for modern television broadcasts and streaming services.

While 1080i is also categorized under high definition, it refers specifically to interlaced video with a resolution of 1920x1080. However, for the purpose of this question, 720p is often the first standard that comes to mind when discussing HD television, as it was widely adopted before 1080p became more standard in HD programming.

1440p, on the other hand, refers to a higher resolution of 2560x1440 and is not typically associated with traditional HD television broadcasts. It is more commonly used in computer monitors and some advanced display technology. Therefore, 720p remains the resolution most frequently identified with HD television.