Internet protocol television, or IPTV, uses a
two-way digital broadcast signal that is sent through a switched telephone or
cable network by way of a
broadband connection, along with a set top box
programmed with software that can handle viewer requests to access media
sources. A television is connected to the set top box that handles the task of
decoding the IP video and converts it into standard television signals. The
Switched Video Service (SVS) system allows viewers to access broadcast network
channels, subscription services, and movies on demand. *
* [Source: IPTV News]