企业在电视上做广告除了放在commercial break（广告时段）以外，还可以购买某个节目的exclusivenaming right（独家冠名权），或者在电视节目中添加product placement（植入式广告）。
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这也使得剩余的广告时段变得越发稀缺，也就越发昂贵。
It also made the remaining AD time scarcer, and thus more valuable.
他们基本上只是时不时地打断自己的演讲，然后进入广告时段让大伙乐一会。
They're just basically interrupting their speech every now and then for what is essentially a commercial break where they entertain you.
电视广告的费用过于高昂，部分原因是由于电影公司必须到最后时刻才能购买广告时段。
The cost of advertising on TV can be exorbitant, in part because studios must buy time at the last minute.
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