Here you can set up and check the activity of the Feed feature on your video channel. Clicking on the options under Post to my activity feed when I . means that the above activities will be sent to Feed when you add a video to the list, subscribe to a video channel, comment videos . To those Other can't control this information of yours, just remove these options and finish.
Finally, it is possible to check whether your video channel appears publicly. By clicking on the avatar in the upper right of the screen and selecting My Channel.
Once the video channel page has finished downloading, you will see the View as Public option on the top right of the screen. Click this button, you'll see how the video channel works and how others see it.