Development of interactive broadcasting has been carried out mainly with CATV although there are fruitful experiences in satellite and terrestrial environments. The services such as VOD, NOD and tele-shopping are subjects of experiments using the two-way CATV networks. This results in features unique to the broadcasting system which allows a large number of unspecified viewers to enjoy high-quality programmes at a lower cost without call loss. Other features of traditional broadcasting lie in that it allows realtime transmission and carefree viewing while doing something else. To implement interactivity while taking advantage of those features of broadcasting there are three different broadcasting system configurations, one being selective or stored reception via a one-way broadcasting and the other being two-way transmission. CATV networks have shown significant development during recent years. Basically, newer CATV networks have been established in some cities. Just three regions are supporting services: CastillaLen, Valencia, and Catalua. Early expansion of these networks to other regions, such as Andalucia or Madrid, was foreseen and then to the remainder of the country in a medium term.In Castilla-Leon, one district was planned, and the network being developed. The transmission was to be analogue and mainly via a fibre network. There were 30 000 users, but the coverage reached 95% in some places. In the case of Catalua, there are three districts and it has been laying out an HFC network, which, initially would support 20 000 users. In a second phase this would be extended up to 40 000 users.In Valencia, a cable installation had reached 11 000 users up to now. The number of user outlets was expected to be increased up to 300 000 by the end of the century.The service offered was a Basic Package of 15 to 20 TV Channels. Prices vary between 1 500 to 2 500 Ptas as a monthly charge and a subscription fee in the range of 5 000 to 10 000 Ptas. No other telecommunication service was provided apart from the delivery of radio services normally delivered by FM signals.CATV networks have shown significant development during recent years. Basically, newer CATV networks have been established in some cities. Just three regions are supporting services: CastillaLen, Valencia, and Catalua. Early expansion of these networks to other regions, such as Andalucia or Madrid, was foreseen and then to the remainder of the country in a medium term.In Castilla-Leon, one district was planned, and the network being developed. The transmission was to be analogue and mainly via a fibre network. There were 30 000 users, but the coverage reached 95% in some places. In the case of Catalua, there are three districts and it has been laying out an HFC network, which, initially would support 20 000 users. In a second phase this would be extended up to 40 000 users.In Valencia, a cable installation had reached 11 000 users up to now. The number of user outlets was expected to be increased up to 300 000 by the end of the century.The service offered was a Basic Package of 15 to 20 TV Channels. Prices vary between 1 500 to 2 500 Ptas as a monthly charge and a subscription fee in the range of 5 000 to 10 000 Ptas. No other telecommunication service was provided apart from the delivery of radio services normally delivered by FM signals.CATV networks have shown significant development during recent years. Basically, newer CATV networks have been established in some cities. Just three regions are supporting services: CastillaLen, Valencia, and Catalua. Early expansion of these networks to other regions, such as Andalucia or Madrid, was foreseen and then to the remainder of the country in a medium term.In Castilla-Leon, one district was planned, and the network being developed. The transmission was to be analogue and mainly via a fibre network. There were 30 000 users, but the coverage reached 95% in some places. In the case of Catalua, there are three districts and it has been laying out an HFC network, which, initially would support 20 000 users. In a second phase this would be extended up to 40 000 users.In Valencia, a cable installation had reached 11 000 users up to now. The number of user outlets was expected to be increased up to 300 000 by the end of the century.The service offered was a Basic Package of 15 to 20 TV Channels. Prices vary between 1 500 to 2 500 Ptas as a monthly charge and a subscription fee in the range of 5 000 to 10 000 Ptas. No other telecommunication service was provided apart from the delivery of radio services normally delivered by FM signals.www.itu.int/dms_pub/itu-r/opb/rep/R-REP-BT.2025-2000-MSW-E.doc