Thought Dexter was superb - was expecting to be disappointed in some ways, having been looking forward to it, but felt it really delivered. Really good concept behind it.
You can see the development meeting, can't you?
'What do people like to watch?'
'Well, CSI is the most popular show on earth... how about a forensics show?'
'Good, good, but we need a twist.'
'Hey, how 'bout serial killers? People love a serial killer!'
'Hey! Hey- let's mix 'em up! Twice the fun!'
'BOO-YA! Justin, send out for halfcaf doubletall trebleskinny macchiato frappacinos all round.'