IPTV一般被称之为网络电视，通过使用IPTV，用户可以使用节目点播、回看等功能。
IPTV is usually named Network Television, through IPTV, the customers will be provided with services like on-demand videos and watch-back.
在关系图的右侧是中间件应用程序以及到后端服务的连接器，此类后端服务包括视频点播(VOD)服务器、电子节目指南(EPG)提供程序等。
On the right side of the diagram are the middleware applications and connectors to back-end services such as the Video on Demand (VOD) server, the Electronic Program Guide (EPG) provider, and so on.
赫德说：“传统电视公司的最大威胁就是即时点播的视频节目。”
"The biggest threat to the traditional companies is on-demand video," said Mr. Hurd.
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