I found two pretty neat sites where the ratings of each of the five years of Breaking Bad episodes were regressed looking for patterns. The first is a bit more exotic and uses a powerful ( and expensive) Excel addin Tabeau. The best graphics are at the bottom of the page: http://www.openbi.com/content/vizualizing-bad-did-breaking-bad-get-better-over-time
This one has a great linear regression plot of each season with CIs: http://www.openbi.com/content/vizualizing-bad-did-breaking-bad-get-better-over-time
This one is similar but perhaps easier to understand; http://www.openbi.com/content/vizualizing-bad-did-breaking-bad-get-better-over-time
