I loved this show. I never really knew what was going on as the tv provider used to show them in a very random fashion but it was terrific. The best parts for me were after Jay had woken up. The pressure to keep secrets from his mother pushes him back into the alternate universe and he becomes a bit more aware of the links between the two. I also really enjoyed that the characters on both sides of his consciousness were so different, leading to a guessing game about which aspects at any one time were going to dominate.
One of the few childrens shows that if released on dvd, I'd seriously think about buying (robotech is pretty much the only other one)!!