Cutting the cable, lets talk options and media setups

I will throw this out there since some of you are very knowledgeable on the antenna info. I can get all of the channels that the site UTJim posted with the exception of the PBS channels. I let the TV scan for channels and it never picks them up. I also don't know how to manually navigate to a channel like 12-1; I can only go to 12. Any aware of what I am doing wrong or have any possible thoughts on it?