You won't get the same experience as a seminar by looking at the material on the website, but all the content is there, so you should be fine. I've actually learned a LOT by looking at the various demo videos that are around that are just a video of a teacher doing Whole Brain Teaching.
By all means, expand beyond the Scoreboard soon! If you like that, you're going to LOVE Teach-OK. It's the absolute best part in my opinion. I just blogged about my own routine for using it today if you're interested.