To add channels to the app you first need to find a M3U Playlist.
You can find free ones by searching on Google for recent results (last 24 hours) or searching on Pastebin also ordering the results by time. Since free playlist usually expire after some time.
After that just add the link in the app and watch your favourite shows.
When the channels are imported they sync with your Apple devices and you can watch them anywhere you go.
I hope you enjoyed this blog post, if you would like to help me you can download my free app ?TV Streams? and start watching IPTV on all your Apple devices today.