On TV, most people can see that there are special features, which are obviously created to tell the audience something, or to attract people's attention. Besides, what is a "word of wisdom"? Everyone knows and often hears people say it, even if it is a famous saying, it is not worth mentioning; but most people don't know the truth - or have not realized the truth, if someone suddenly says it, we will know it. It feels refreshing, and I have the urge to listen and explore. In short, almost everything on TV is to tell the audience something, or to attract people's attention.