Sets which should be somewhat permanent change, especially in early seasons. The foyer of Lorelai and Rory's house in S1 does not open to the living room, but it does for subsequent seasons. Luke's apartment changes frequently, with the bathroom moving from one side of the apartment in S1 to the other in S2. The cash register in the diner switches from one end of the counter to the other regularly in the first couple of seasons. The elder Gilmore's house changes as well. These are in addition to very large changes from pilot to series. See more
How does Charlie Rose screw up your REM sleep?
Because he's always got some guy on pushing a book about how everything's all going to hell, or they're going to pass a law, how everyone with a nose ring is going to get shipped off to China. Suddenly you're depressed, thinking we're all going to die and don't drink the water, there's anthrax in my bagel - and bam, there goes your REM sleep.
Or Mel Brooks is on, and he is so funny, and you think, "What a wonderful world we live in, that there's a ...