The theme song and introduction to The Big Bang Theory illustrates economic growth over time.
Read MoreThe Floppy Disk
Sheldon is discussing his list of mortal enemies, which he keeps on a 5.25 inch floppy disc.
Read MoreIndonesia or in an Apartment?
Sheldon calculates out Penny's per-day wage and makes a comment that children in Indonesia make more money than she would.
Read More