Youtube does not provide links to official RSS feeds for Youtube channels and playlists but it is quite easy to build them yourself with the individual channelID Playlist ID and a predetermined URL.
Here is how it goes:
To determine the RSS feed for a YouTube channel:
• Go to the YouTube channel page and view the source code of the page
• Search for the text “channelID” in the source code and copy the value next to it. It will look something like this: UCqoI4oSGEttrjmasJPBx5Uk
• Paste that Channel ID value into this URL: www.youtube.com/feeds/videos.xml?channel_id=YOURCHANNELID
To determine the RSS feed for a YouTube playlist:
• Go to the playlist page and copy the playlist ID from the end of the URL. It will begin with PL, and will look something like this: PLoPWMZAP6PVfgB0d7IddtJO4E2m5WfXBM
• Paste the playlist ID in this URL: www.youtube.com/feeds/videos.xml?playlist_id=YOURPLAYLISTID