ETSI EN 300 468规定了构成DVB比特流一部分的服务信息（SI）数据，以便可以向用户提供信息，以帮助选择比特流中的服务和/或事件，并且使得集成接收器解码器（IRD）可以自动为所选服务配置自身。自动配置的SI数据在ISO/IEC 13818-1[18]中主要指定为程序特定信息（PSI）。本文件规定了补充PSI的附加数据，通过提供数据来帮助自动调整IRD，以及旨在向用户显示的附加信息。本文件未规定信息的呈现方式，IRD制造商有权选择适当的呈现方式。 预计电子节目指南（EPG）将成为数字电视传输的一个特点。EPG的定义不在本文件（即SI规范）的范围内，但本文件规定的SI中包含的数据可作为EPG的基础。ETSI TS 101 211[i.2]中规定了实施本文件的操作规则。

ETSI EN 300 468 specifies the Service Information (SI) data which forms a part of DVB bitstreams, in order that the user can be provided with information to assist in selection of services and/or events within the bitstream, and so that the Integrated Receiver Decoder (IRD) can automatically configure itself for the selected service. SI data for automatic configuration is mostly specified within ISO/IEC 13818-1 [18] as Program Specific Information (PSI).The present document specifies additional data which complements the PSI by providing data to aid automatic tuning of IRDs, and additional information intended for display to the user. The manner of presentation of the information is not specified in the present document, and IRD manufacturers have freedom to choose appropriate presentation methods.It is expected that Electronic Programme Guides (EPGs) will be a feature of Digital TV transmissions.The definition of an EPG is outside the scope of the present document (i.e. the SI specification), but the data contained within the SI specified in the present document may be used as the basis for an EPG.Rules of operation for the implementation of the present document are specified in ETSI TS 101 211 [i.2].