"He watched TV" 可以用英文表达为 "He watched television." 或者 "He watched the television."

"Television" 是一个名词，指电视机的机器。这个词的来源是希腊文的 "tele," 意思是 "far," 和拉丁文的 "visio," 意思是 "sight," 的组合。在英文中，"watch" 是一个动词，意思是观看，注意或监视。

下面是一些使用 "he watched TV" 这个短语的例句：

"Last night, he watched TV for hours." (昨晚，他看电视好几个小时。)
"He always watches TV before going to bed." (他总是睡前看电视。)
"Do you want to watch TV with me?" (你想和我一起看电视吗？)