Accidentally denied access to my Smart TV on my S4 Screen Sharing settings. How can I undo that?

[AC Question]

accidentally denied access to my Smart TV on my s4 Screen Sharing settings. How can I undo that?

Connect and Share -----> Advanced ------> Allowed Devices -----> -----> I unchecked the box next to my device name!! Now when I go back, it never shows up. Its not in the Blocked list. Help to undo.