Boy did this episode hit the nail on the head. It was simply a great episode very much in the vein of earlier seasons. They didn't deal that much in the male/female relationships but did use Penny's and Leonard's to great effect. But it was funny to see Leonard act so anal and then to see him get hit on by Alex while being completely obtuse to what she was doing. That seems a sure thing for future development and it will be fun to see how the Penny/Alex/Leonard thing plays out. In my opinion Alex is cuter than Penny and probably wouldn't present Leonard with so many problems. But then the other plot line in this episode, Sheldon down in his secret room, was hilarious. I really laughed hard near the end when they saw Sheldon get attacked by a creature from his wormhole! Hilarious to watch Raj and Howard freak out and see Sheldon come walking up behind them. It was also interesting to see Ryan Cartwright in his small role and he was a rather cool guy compared to Gary on Alphas.
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