Change published Public channel to Private channel

I believe the Co's apparatchiks can do that, technically speaking.
Although they may want to scrutinize the motivation and expedience of doing so.

Thx for the info but is there anyone from the company that actually looks at this forum? looking for a Yes or No answer then who to email to do the request if possible.

Like i said, in my personal (and non-RokuCo-sanctioned) opinion the answer may differ depending on the situation. RokuCo people skim the forum but don't feel compelled to reply to every question.

Best (and official) course of action, mailto: developer at roku.com