Think about buying an aerial with a built-in signal amplifier, especially if the television set is more than 20 feet (six metres) away.

特别是如果电视机与天线距离超过超过20英寸(6米)，就得考虑买一个内置信号放大器的天线。

youdao

When Europe's new digital-television channels want to offer potential audiences something to make it worth buying a new and expensive set, they turn first to sport, but then to Hollywood.

ECONOMIST: Star wars