During commercials, an overlay will appear at the bottom of the screen, prompting viewers to press a button to request a free sample or order a catalogue.

在商业广告播放时，一个弹窗将会出现在屏幕下方，促使观众按动按钮，以索要免费样品或订阅产品目录。

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During commercials, an overlay will appear at the bottom of the screen, prompting viewers to press a button to request a free sample or order a coupon or a catalogue.

在广告期间，屏幕底部会出现一条信息，提示观众按下按钮以请求获得免费样品或订购优惠券或目录。

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Practical application: Give away a free sample or freebie - anything for free. Make sure it is something of real value.

实际运用：发放免费试用装或代金券——任何免费的东西都可以，但一定要是有实际价值的东西。

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We are vulnerable to placebos: "Hey -- I took the 30-day free sample and I feel sure my vision did improve!"

CNN: Herbal remedies need real scrutiny

Type in your demographic information and you'll see a screen listing your free-sample options -- everything from cleaning products to Harlequin romance novels to toiletries.

CNN: 23 surprising things you can get for free