Alpine: Videos set to private on Youtube are "by invite only" and won't show on your channel list. You can invite up to 50 people to watch it (they must have Youtube accounts). Only people invited can see them. It should also be noted that videos set to "private" can't be commented on either.
Right now there is no way to (automatically) show videos only to people on your subscriber list; you have to have the email connected to their Youtube account and invite them that way.
Only you can view them. The only way they could see it is if you put the privacy on public.
hey what is your YouTube account ma dude