Is their a way to set up the server to immediately delete the show after it has been watched on the channels DVR server (I know it has been set to one day), or how do you delete the shows on the Channels DVR server manually after watching them?
On your Web browser go to:
Your-IP-Address:8089/admin/ or https://my.channelsdvr.net/
Recordings tab ==> Recordings ==> Trash
From there you can delete individual shows or "Empty Trash"
Also, Trash is accessible in the new 4.0 tvOS/iOS beta. You can empty the whole thing with a single button.