For those of you who don't know, Johnny Galecki (David) now plays Leonard on The Big Bang Theory. Now about every guest star was on the show was on Roseanne. Ok, so first they have Sara Gilbert (Darlene) and even I admit as a huge Roseanne fan that it was a very heartwarming scene to see them together again. Well then we have Laurie Metcalf (Jackie) on and as hilarious as she was, is it getting to be too much?