How to become more knowledgeable about the body and its functions (Physiology not Biology)?

I'm interested in Physiology and enjoy learning why the body does certain things. I'd like to become more knowledgeable about the subject but I'm not sure where to find info and what to look for, I don't have a specific topic. I don't really want to go to the library to read encyclopedias and all. I've watched House but it's not real informative. Where should I look?