How to choose a city for the weather forecast after 30 minutes of CCTV news?

That should cost money. One of my classmates said that their city spent some money on weather forecast. (But it shouldn't be all about money. For example, after the news broadcast, almost all of them are provincial capitals. )

The following is a tender advertisement:

The landscape advertising value of CCTV- 1 weather forecast;

-at a truly ultra-low price, it has a place in CCTV's most golden bidding advertisement.

The price before and after the bidding period is more than 6,543,800 yuan, which is the focus of national attention.

-The audience rating is the highest, and the CCTV news channel broadcasts simultaneously, and the cost per thousand people is 0.07 yuan.

-The weather forecast in the capital and provincial capital cities has the highest quality and the largest audience. Every day,

There are 300 million viewers in the country watching.