A Good Commercial

The advertising is a best way to propagandize a product because so many people watch TV and have to see the commercial. Even though nobody want to watch the commercial, it still the best way.
Several days before, I saw a commercial by DQ. The product is a spicy hamburger. Everybody knows that DQ is a company for Ice-cream, but why they want to product a spicy hamburger? And propagandize a not main product of the company?
Let's talk about it. They produce the spicy hamburger and propagandize it, the purpose absolutely is to sell more hamburger. If more people watch the commercial of the spicy hamburger, more people will buy the spicy hamburger. Because it is a "spicy" hamburger, after people eating, they will fell hot. Then they may buy a Ice-cream.
That's make more trade by the spicy hamburger. DQ company sell more new product and also sell more main products.