Definitions for "Datacasting"
Broadcasting extra data with the TV signal that isn't required for the picture or audio (e.g., seeing game show answers in advance, a radar image, stain-fighting tips during a Tide commercial). Viewers can access this additional information with special DTV receivers or computers. Better known as "enhanced TV."
The inclusion of additional data in the broadcasting stream. Such data may be related to the current program (e.g. sports statistics) or may be completely independent (e.g. software downloading or traffic advisories).
The transmission of digital data. Generally datacasting refers to often large computer files. Streaming technology is such, though, that increasingly datacasting includes encoding audio and video as digital data files. Datacasting is distinct from TVRO.