The channels on the Roku are divided into two, Public and Private. If the users want to install a private channel, then they have to enter Roku’s online portal unique code. However, the individual channels are available on your device in the Channel Store. In this article, we will focus on the public channels.
Sources : https://accountsupport697459633.wordpress.com/2020/08/07/best-free-roku-channels-that-you-shouldnt-miss/