What is a key feature of DTV technology regarding channel capacity?

Digital television (DTV) technology is designed to offer more efficient use of the broadcast spectrum compared to analog television. A key feature of DTV is its ability to compress data, which enables a single digital signal to accommodate multiple standard-definition television channels.

In the context of the options provided, the correct answer highlights that a digital signal can carry approximately 12 TV channels based on the compression capabilities inherent in DTV. This means that the same bandwidth that once supported just a single analog channel can now be utilized to deliver multiple channels of content simultaneously. This is a significant advancement in channel capacity, allowing broadcasters to offer a greater variety of programming to viewers without requiring additional bandwidth.

This feature illustrates how the transition from analog to digital broadcasting not only improved picture and sound quality but also greatly expanded the number of available channels, enhancing the overall television viewing experience.