Abc is australia s only national , non - commercial broadcaster Abc是澳大利亞唯一國家非商業廣播媒體。
Bbc against bskyb - competition and revelation : public and commercial - broadcasting in new situation 新環境下公共廣播電視與商業廣播電視的競爭及啟示
Type of national television system committee system . national television systems committee the association s a committee of electronics industry , for the united states , canada , japan and central america with the business television broadcast of part of regions in south america establishment standard . ntsc format 3 10 per second 30 hz , distinguish the rate to 525 to scan the line . palthe line pour the system the type : phase alteration line this standard used fors majority europe the nation , australia , central america with the business broadcast of part of regions in south america . when the pal format show , 25 per second 25 hz , distinguish the rate to 625 to scan the line . line 電子工業協會的一個委員會,為美國加拿大日本以及中美和南美部分地區的商業電視廣播制定標準。 ntsc格式每秒三十幀30hz分辨率為525掃描線行。 pal逐行倒相制式phase alteration line :此標準用于大多數歐洲國家澳大利亞中美和南美部分地區的商業廣播。
What most americans have known as soap opera for more than half a century began as one of the hundreds of new programming forms tried out by commercial radio broadcasters in the late 1920s and early 1930s , as both local stations and the newly - formed networks attempted to marry the needs of advertisers with the listening interests of consumers 半個多世紀以來大部分美國人所熟悉的肥皂劇最早出現于20世紀20年代末至30年代初,當時,由于地方電臺和新建立的廣播網絡試圖將廣告商的需求與消費者對廣播節目的要求緊密結合起來,商業廣播公司嘗試了數百種新的節目形式,而肥皂劇就是其中的一種。