Notice how basically no one ever mentions Lost or Game of Thrones anymore?
These shows were HUGE during their time. “This is AMAZING. Television has never been like this before. You can’t be an adult in society if you haven’t seen last night’s episode because if you say you don’t watch this show the conversation will immediately end.” soon “What the fuck was that ending? The last season turned to shit! Never mention this shit to me again.”
It’s like VindictiveJudge says, these shows are designed to feel like they’re going places but never actually get there. The writers of Lost put shit in that they thought looked intriguing but they hadn’t thought of any way to resolve it into something. “What do the numbers mean?!” Nothing! Absolutely nothing!
Those shows are built like big epic stories, they’re not Star Trek type adventure of the week that returns to the status quo, and yet they’re not designed to resolve. Of course you’re going to leave unsatisfied.