Sheldon calculates out Penny's per-day wage and makes a comment that children in Indonesia make more money than she would.
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The theme song and introduction to The Big Bang Theory illustrates economic growth over time.
Sheldon is discussing his list of mortal enemies, which he keeps on a 5.25 inch floppy disc.
Sheldon calculates out Penny's per-day wage and makes a comment that children in Indonesia make more money than she would.
Sheldon asks Penny to sign for a package from UPS because he would like to transfer property rights back to her.
Leonard is selling his share of the time machine and everyone is giving him offers below what he paid due to depreciation.