What you said about the trade-in process is basically correct. I'm from Tianjin, and I'm waiting to change my color TV. I'm worried that my family won't watch TV for at least one day. I'm not used to it. This is because the trade-in certificate needs to be connected to the network, and the safest time to buy new home appliances is 24 hours later. Some time ago, I saw a news about the trade-in of household appliances in Beijing, saying that the relevant departments did not allow merchants to force consumers to buy new household appliances first and then collect the old ones. This should be done by businesses in order to promote consumption, because many customers are not in a hurry to buy new home appliances after sending them away and getting the trade-in certificate. But I think this method is for customers to choose. If there is such a method in the future, I will accept it, because then I won't have to watch TV for at least one day, and you don't have to worry about where the things in the refrigerator are. In addition, I found that the current price of electrical appliances is still not normal. Merchants must have their own small abacus. I suggest you wait and see with money first, and learn more about the price from all aspects before you start.