When you follow a Channel, all your favorite shows are organized in one place: under the "Following" tab of your profile. You can also find this tab in the drop-down menu in the corner of Viki.com, under your profile picture.
Channel Managers of each Channel also have the ability to send messages to all followers. If you follow a Channel, you'll also receive these PMs.
To follow a show, click the "+" button on the Channel page or on the individual episode page.
To unfollow a show, please refer to these instructions.