The way we consume TV has changed, something more evident in 2015 than ever before. Thanks to streaming services such as Netflix, and the popularity of box-sets on the likes of Sky (or just good ol' fashioned DVDs), people watch what they want when they want, rather than enjoying one episode per week. This binge-watching means that, in a lot of cases, you might remember standout moments, or judge how well a run of episodes work (as well as the season as a whole, of course), but often single episodes can blend into one. That means that the ones that do stay in your head, regardless of how and when you watched it, must have something pretty special. Whether they're packed with action, have some big dramatic moments, make you laugh 'til you cry, or just cry in general, with some superb acting, writing, and direction, these are the best episodes of another great year for TV. Be warned, there will be spoilers.