The landscape for digital TV services (DTV) is changing rapidly.
数字电视服务（Digital TV services，DTV）领域正发生着快速的变化。
Since the first services were launched in 2005, mobile-TV services have garnered over 7.5m customers.
自从2005年首个移动电视服务开始以来，该服务已累积了超过750万用户。
Technology has made a single market of the phone and television businesses: Televisa now bundles phone and Internet with its cable-TV services, and wants to add mobile phones.
科技已经促使电话和电视产业合并成一个单一的市场：Televisa现在将电话和网络同它的有线电视服务捆绑在一起，还希望添加手机业务。
But both Nokia and Motorola Inc. of the U. S. said that the announcement would have little impact on their plans to expand mobile-TV services in China and the rest of the world.
但是诺基亚和美国摩托罗拉公司都认为，中国的标准不会对他们在中国和世界其它地方推广移动电视服务的计划有任何影响。
Traditional interactive TV systems depend on expensive hardware, proprietary formats, and a closed-loop end-to-end approach, which greatly limits scalability and extensibility of TV services.
传统的互动电视系统依赖昂贵的硬件、专用格式和端到端的封闭环路，这大大限制了电视服务的可扩展性。
Traditional interactive TV systems depend on expensive hardware, proprietary formats, and a closed-loop end-to-end approach, which greatly limits scalability and extensibility of TV services.
传统的互动电视系统依赖昂贵的硬件、专用格式和端到端的封闭环路，这大大限制了电视服务的可扩展性。
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