It took more than two decades, though, until 1951, for regular colour TV broadcasts to begin in the USA.

这花费了二十年，可是，直到1951年，普通彩色电视广播才开始于美国。

John Logie Baird constructed the first colour TV in 1928, but it was not until 1938 that the first colour TV programme was broadcast.

John Logie Baird于1928年制造出第一台彩色电视机，但直到1938年第一个彩色电视节目才播出。

The typical British family has a car, a colour TV set, a washing machine, and a cat or dog as well.

典型的英国家庭有一辆车、一台彩电、一台洗衣机，还有一只猫或狗。

However, within a short time nearly all TV broadcasts were made in colour, and within five years more colour TVs than black-and-white TVs were being used.

但是，在很短的时间内，所有的电视广播都成为了彩色，五年内，彩色电视的使用超过了黑白电视。