Terrestrial digital broadcasts kicked off in parts of Tokyo, Osaka and Nagoya on Monday, offering viewers sharper images, improved sound quality, interactive programs and data-transmission services.

The system is set to replace current analog telecasts nationwide by 2011.

Ceremonies to usher in the new technological era took place across the country.

Prime Minister Junichiro Koizumi attended an event organized by the national council for the promotion of terrestrial digital broadcasting, of which Japan Broadcasting Corp. (NHK), commercial broadcasting stations and related organizations are members.

``We mark this historic day of beginning terrestrial digital telecasts in the year of the 50th anniversary of (analog) television broadcasts. I hope terrestrial digital broadcasting spreads across the nation as quickly as possible so everyone can benefit,'' said Koizumi, speaking in Tokyo's Chiyoda Ward.

NHK Chairman Katsuji Ebisawa also attended.

``I am excited and feel responsible (for the new broadcasting system),'' Ebisawa said.

Hisashi Hieda, chairman of the National Association of Commercial Broadcasters in Japan, stressed the high cost of going digital.

``We again ask for public financial support to prevent the gap between the three urban areas and rural areas from becoming wider,'' Hieda said.(IHT/Asahi: December 2,2003) (12/02)