To a race of observing aliens, digital TV signal would like noise, said Dr Drake.德拉克博士说，对观察力敏锐的外星族类来说，数字电视信号就像噪音。The company fills a niche in the digital TV market.这家公司在数字电视市场中获得了一个独家经营的机会。This leaflet should answer all the questions you have about switching to digital TV.这本小册子应该可以解答你关于如何转换到数字电视的所有问题。