It is very simple to install a Zhihu screen information release software on TV, and you can play the promo uniformly. The general steps are as follows: 1) First, install the Know Screen app on the TV. Baidu searched official website, downloaded the software apk to a USB flash drive and installed it on the TV. 2) Open the software, log in with WeChat scan code, upload the promotional video on the mobile phone or computer, and then publish it to the TV that needs to be broadcast uniformly.