You can try software that understands the screen. They can display videos, pictures and prices on different screens, and they can also connect with the cash register system to update prices in real time.

1. You can download and install their software on TV, Xiaomi App Store, Dangbei Market and Huanshi Assistant, or you can download an installation package with a USB flash drive.

2. According to the goods in the supermarket, it is better to set the pictures and prices of the goods on TV, and cooperate with the activity video and the origin introduction video.