I watched the first few seasons of Castle but I also ditched it a few years ago. Oh and Person of Interest this year.

I'm more likely to ditch reality shows. For example, Project Runway and Top Chef, because you can only watch people sew and cook so much before it gets really boring. Actually the same goes for most reality competition shows. Dancing with The Stars, Survivor, The Biggest Loser, American Idol, etc. They are the same thing every week, so once I watch the first few weeks and get the feel of the people then I fast forward through the episodes and just watch the eliminations. I've also pretty much given up on Chelsea Lately as well.