也叫网络电视，是指基于IP协议的电视广播服务。
PTV , also known as network TV, is based on IP protocol television services.
梦幻卫星电视是首个全数字直接到家庭（DTH）电视广播服务，通过在菲律宾卫星。
DREAM Satellite TV is the first all-digital Direct-To-Home (DTH) television broadcasting service via satellite in the Philippines.
数字服务也可以是交互式的，允许民意测验和智力竞赛的节目，文字电视广播改良后的译本和照相视角的选择。
The digital services also will be interactive, allowing participation in polls and quiz shows, improved versions of Teletext, and a choice of camera angles on some coverage.
这种地面数字电视广播系统使得更多人能够使用这项新服务。
This terrestrial digital broadcast system means that more people will be able to use the service.
大部分电视广播公司都制订了宏伟计划，要利用这些频段向公众推销信息服务。
Most had grand plans for using such frequencies to sell information services to the public.
如今，电视广播公司以迅雷不及掩耳之势建立了在线订阅视频的服务。
With impressive speed, TV firms are now building online subscription-video services.
本文以光纤电缆混合网络（HFC）为基础，提出了一种应用于计算机数据传输、有线电视广播及电话通信的综合服务方案。
In this paper, we propose a HFC based comprehensive servicing solution that is applied in the computer data transmission, wireline television broadcasting and telephone communication.
如何更加方便的进行多媒体信息的互动交流，让受众得到更多的信息服务，是当前数字电视广播领域的一大需求。
How more convenient for interactive multimedia information exchange, let the audience get more information services, is currently a major area of digital television needs.
如何更加方便的进行多媒体信息的互动交流，让受众得到更多的信息服务，是当前数字电视广播领域的一大需求。
How more convenient for interactive multimedia information exchange, let the audience get more information services, is currently a major area of digital television needs.
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