Hi! I've played the demo (it was GREAT, btw), but I noticed a few small problems you might want to deal with. These are purely just things I noticed that I think might help you, so if you disagree or just don't want to use my advice, then don't use it.
Your towns seemed to have to much open space in them. Perhaps they should be condensed a little more. And the maps that are lined with blue just looked... funny. Perhaps you ought to make a tree paralax background. Just some thoughts on the cosmetic side, not that they affect playability at all.
You might also want to note that It's currently possible to walk on top of the dark cave, if you walk over the entrance. The only other thing I could find wrong is that the demo crashed when I walked into the silver house in violet city. Appearantly a charset was missing...
Other than those things (which are really minor), the demo was great! I hope we see more of it in the future. The TV idea you were just discussing will be a GREAT addition, IMO.