In terms of signal representation, what does SDTV typically utilize?

SDTV, or Standard Definition Television, typically utilizes a resolution of 480i. This means that the video is displayed in a standard format with a resolution of 720x480 pixels, where the "i" denotes interlaced scanning — a method that displays alternate lines of the image in each refresh cycle, creating a full image by interlacing these lines.

This resolution is significantly lower than that of high-definition formats like 720p or 1080p, which feature higher pixel counts and provide a clearer and more detailed picture. Understanding this distinction is crucial for recognizing the evolution of television technology and the standards that have been set.

In addition, while compressed audio may be an associated component in transmitting video content, it does not pertain directly to signal representation in video resolution, making it less relevant in this context.