This show was wildly funny, original and inventive in its first three seasons, still funny in its fourth, but it has gone flat and stale now. It used to be about four science nerds and the sweet "normal" girl across the hall. There used to be great science jokes, nerd in-jokes, geek in-jokes, sweet and funny moments when we really cared about the misfits, and side-splitting original wild comedy (rocket fuel in the elevator, nerds high on hash brownies in the desert courtesy of the nice Baby Boomers one campsite over, Kripke and the battle of the 'bots). Now it is tiresome, coarse and vulgar. There is no wit, there's just a stupid laugh track and unfunny situations and dialogue. Every now and then there's a flash of the old creativity, but those don't happen even once per episode. We used to laugh WITH the nerds, now we are supposed to laugh AT them. They've become the "normal" people's stereotypes of nerds. Sheldon not catching the prolonged references to wood in his role playing game while Raj and Howard can't stop giggling is the level of the humor now, and that is light years from what it used to be. This show has lost its way. The DVD packaging is good, sound and imagery fine.