Yeah, I would say just watch all of Season One, and see if it sits with you. Of course, the thing with Who is this: Change. It's always changing, always evolving. Even the main character changes sometimes (as you saw). Each episode is different. Sometimes it's cheesy, sometimes it's fun, sometimes it's scary, sometimes it's pure sci-fi, and sometimes it's a bit of everything and more. The versatility of the concept allows pretty much every type of story can be told. So, give it a fair shot...