If you have a cable television, you may have 100, 150, 200 channels - 200 different television stations you can watch.  如果你家是有线电视，你可能就有100，150, 200个频道——可观看200个不同的电视台。

In this case, Lucy is flipping through the channels. 露西就是这种情况，她正在浏览这些频道。

To flip, "flip," through the channels means to go from one channel to another, usually somewhat quickly.   浏览频道意味着从一个频道切换到另一个频道，通常有点快。

You want to see what programs are on the television right now, so you flip through the channels. 你想看看电视上现在有什么节目，于是你浏览这些频道。

Unfortunately, all Lucy sees "are commercials." 遗憾的是，露西看到的都是“商业广告”。

Commercials are just advertisements. 商业广告就是广告。

These are things that you see on television that try to get you, usually, to buy something. 你可以在电视上看到它们，通常会诱惑你买东西。

"My favorite reality show," Lucy says, "doesn’t come on for another hour."   “我最喜欢的真人秀节目”，露西说，“还要再等上一个小时”。

A reality, "reality," show, "show," is a television program that does not have professional actors or actresses;  真人秀是一档电视节目，它的参赛选手不是专业演员，

it is a show where there is a contest between people or groups of people.   是普通人之间或团体之间进行比赛的节目。

Lucy says her show "doesn't come on," or isn't going to be on the television, "for another hour"  露西说，她的节目“没开始”，或者“一小时后”才开始。

so she turns the television off. 因此，她关掉了电视。