【正确答案】
[参考范文]
I think TV commercial ads have both advantages and disadvantage.
To begin with, they are good because they can popularize the latest products. For example, If some people want to buy a digital camera, but they have no idea about which brand is the best and where to buy it. They may just find out relevant information about it by watching TV ads. But, of course, TV commercial ads are bad because some of them are misleading. For example, some ad about an English training course says "Come and join us. You can learn how to speak English within 40 minutes."
To conclude, people should be very much careful about TV commercial ads.