What feature does the dual-tuner HDTV STB provide for user convenience?

The dual-tuner HDTV Set-Top Box (STB) provides the ability to watch and record different channels simultaneously, which significantly enhances user convenience. This feature allows users to view one channel while recording another, ensuring that they do not miss their favorite shows or events. For instance, a viewer can enjoy a live sports event while also recording a movie scheduled to air at the same time.

This dual functionality caters to the increasing demand for multitasking in media consumption, allowing for a seamless viewing experience without having to choose between two programs that might air concurrently. Such flexibility is particularly valuable in households where multiple viewers may have varied preferences for what they want to watch or record at any given time.