This one doesn't do too many broad new things. It has a nerdy song. It has Penny and Sheldon together helping and confusing one another. But both of those things are things that made me like the show in the first place. Plus the material of them working together plus the song and Sheldon and Penny's meeting was different in certain ways. Any and Lenerd also have fun doing old kiddie science stuff m. Overall it's quite good.