GB 31AccessAuthorisation to use the coding system to purchase /order TV programmes.Audio systemWith digital reception, the sound is transmitted in pack-ages and is selected either in a special audio mode or pre-selected by using the installation set-up. This makes itpossible to select between several different languagesin a film. The number of choices is dependent on whatis available in the signal.DVBThe Digital Video Broadcast group was created to estab-lish a technical framework for the introduction of digitalvideo broadcasting systems.EPGElectronic Programme Guide. A software that enablesviewers to navigate easily among the large number ofchannels provided by digital technology, in order to se-lect the service they desire.MediamasterA unit that converts the digital satellite signals into audioand video signals. The audio and video signal can be sentto the TV set either via SCART or via RF (modulator out-put).MHzThe prefix mega means million, and Hertz means cyclesper second.MPEGMoving Picture Experts Group. A standard established bythe International Standards Organisation to provide thebasis for a picture coding and compression system.NetworkA number of digital channels transmitted from onesource. Grouped under separate headings in the channellist.GLOSSARY OF TERMSParental controlA feature that allows parents to "lock" programmes thatthey consider unsuitable for children. A "locked" channelor programme can only be "unlocked" with the special pa-rental access code.Parental Access codeA four-digit code stored in the Mediamaster. Used to lockthe Mediamaster.PIN codePersonal Identification Number. A four-digit code storedin the Smartcard. For e.g. PPV (Pay Per View) or otherservices together with the subscription.RFRadio frequency (known as HF in some countries).SERIALA serial communication standard port.SCARTA 21-pin connector used for connection of the Media-master, VCR and TV. Also named Euroconnector orPeritel connector.Scrambled TV programmeSome satellite TV programmes are transmitted in scram-bled form. A smartcard, will be needed to view such pro-grammes.Service providerIs a company that collects a number of programms/serv-ices and distributes them to customers.S/PDIFSony/Philips digital interface format. Digital audio output.SWSoftware. Programme code.VCRVideo Cassette Recorder.