Tvheadend

I've been working on this for a day now and could really use some help getting this up and running. I'm unable to get the channel names listed with encrypted comcast channels. From what I've read, this is a bug that has been addressed in the latest unstable ver 3.3+. However, I'm still unable to get the channel names to lineup even when turning off full mux reception. Any ideas on how to get this setup other than manually adding hundreds of channels? Thanks in advance for any help!