This was very helpful. Thank you for posting.
Yep, its actually pretty easy to do.
Its done though ChanServ's Mlock Function, which forces the mode on the channel when ever anyone is int he channel.
To set the mlock for your channel, if you are the owner, type
/cs set #rhett-and-link mlock +ntG
If you decide you want to take the Censor off of mlock, you would type
/cs set #rhett-and-link mlock +nt
and then
/mode #rhett-and-link -G
Let me know if it works, or if you have any other questions, feel free to ask here, or in #help.