A specific value used by an encryption algorithm to encode and decode data.
enhancement
A multimedia element, such as a hypertext link to a Web page, a graphic, a text frame, a sound, or an animated sequence, added to a broadcast show or other video program. Many such elements are based on Hypertext Markup Language (HTML).
enhancement announcement
A type of announcement that contains data about an upcoming enhancement for an interactive television show. Enhancement announcements are typically sent repeatedly during a show to inform clients when new enhancement data is about to be sent, and to give viewers who tune in late the chance to receive enhancements that have already been sent.
enhancement page
A Hypertext Markup Language (HTML) page that formats enhancement content, such as images and text, for display.
Enhancement Video control
An ActiveX control that displays video within an enhancement. Unlike the Video control, which also displays video, the Enhancement Video control can be used only in Hypertext Markup Language (HTML) pages displayed by WebTV for Windows. In contrast, the Video control can be used in Web pages and stand-alone applications as well as in WebTV for Windows. The Enhancement Video control automatically handles the connection between itself and WebTV for Windows, whereas the Video control does not. The Enhancement Video control is provided with Broadcast Architecture.
episode
A discrete narrative portion of an ongoing television or radio show, usually viewed in one continuous showing. Generally, an episode forms a coherent story in itself.