BBM Channels now supports multiple admins, so if you have a BBM Channel that could do with one or two more people posting content, you can do so right now. 
All is needed of you is to log-in to the BBM Channels Manager, pick the channel you currently are the admin for and then fill out the necessary information in order for the person you wish to be the admin to receive your request. (As shown above)
Since we’re already on the topic of BBM Channels, why not follow the BlackBerry Empire Channel @ C00071CA4