Is it credible to call or send a text message on TV programs to ask about the stock code?

Not credible. I used to be a securities analyst in an investment consulting agency. The media analysts in the department never listen to our analysis opinions and look for stocks that rose better that day, which are in line with hot spots. However, once the hot spots are switched, such tickets will be stuck. Advertise when the stock goes up, and forget it when it goes down.

They do programs on TV because you call or send text messages, they get your contact information, and then they keep calling you to buy their products. After buying the product, no one will care about you, and their stock may not be accurate. Our jargon is "if everyone has a daily limit, we won't help people do this job and borrow money to make money by stock trading." Of course, there will be stocks with better gains pushed to you, but the probability problem.

For reference only. If in doubt, you can write to the station for discussion.