hey don't get me wrong, I absolutely LOVE Breaking Bad and would love it to go on forever, but I can't help but worry that a show like this will run out of ideas.
If it makes you feel better, after Season 3 (which was written up largely episode-by-episode), the writing team for the show spent months planning out what's supposed to be a meticulously planned fourth season. Something tells me that if they were really so forward-thinking, they'd be careful to avoid treading over familiar territory.
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http://www.youtube.com/watch?v=SBpfwpOPXNc&NR=1&feature=fvwp
I watch Planet Chasers Starlight Excellent all day, every day.