The first people to buy these cameras, they were called the LDK series, were Oprah Winfrey and Black Entertainment Television.
最早购买这些相机的人， 他们被称为 LDK 系列，是奥普拉温弗瑞和黑色娱乐电视。
英语百科
BET
Black Entertainment Television (BET) is an American basic cable and satellite television channel that is owned by the BET Networks division of Viacom. It is the most prominent television network targeting African American audiences, and currently reaches more than 88 million households. The channel is headquartered in Washington, D.C..