HD-Ready refers to a standard for televisions that are capable of displaying high-definition video but do not have a built-in tuner to receive high-definition broadcasts. These displays can support resolutions such as 720p or 1080i, making them suitable for HD content when connected to an external HD source like a Blu-ray player or HD cable box. This term highlights the ability of the television to deliver enhanced picture quality and detail compared to standard-definition displays.