I used to be a pretty big fan of crime dramas. Granted, I never watched a show whose title was simply a mash-up of letters (JAG, NCIS, CSI), and I was usually more interested in the solving of the crimes than the personal lives of the characters, keeping me from getting pulled in by programs such as The Wire or The Shield.
Yes, I know, I missed out on some great television, but honestly, I don't really mind!
For a while I used to watch Law & Order and its spin-off Special Victims Unit (which I guess could be L&O:SVU but I hate that acronym), but the former went away and the latter became so completely contrived and far fetched I expected an episode to eventually take place in Narnia.
My personal favorite series is Numb3rs, but there's a series I just watched recently that's completely changed my attitude towards these kinds of programs.
The show is Broadchurch, and it's possibly the best crime-based television show I've ever seen.