How do I view a channel?
If you’re already a member of a channel:
Tap on the channel name when viewing a post on the home feed to see all the posts made to that channel, or
Tap on the “Discover” icon on the bottom toolbar and either search for or tap on the name of the channel you want to view.
If you’re not a member of the channel you’re viewing, you’ll only be able to see a top-line view of content. You can
Join the channel if it is a public channel; or
Request to join it. Once your request has been OK’d by the channel administrator, you’ll be able to see all the posts in it.