X-Files
My first high-concept series was the X-Files. Yes, it was before the age of internet started. As I remember, the biggest question was the nature of the relationship between the aliens and the inner circles of the government, represented by the smokig man. We never got a satisfactory answer for this, but this storyline was so complicated that I blame myself for not understanding the answers. The writers didn't betray the fans with one big question and a big shitty answer, because the less importan questions got answered, like who killed Mulder's father, what happened with Mulder's sister, why did the smoking man help Mulder sometimes. SPOILER: I just realized, that Mulder was the first popular zombie on TV before it was cool. Yeah, what if Bobby Ewing used this "I was a zombie for a year but I got cured" move? It would have been better. This zombie resurrection was way better that Scully waking up next to Mulder and saying ,,I watched Terminator 2 yesterday and had a terrible dream. Mulder - I have watched porn and I had a nice dream, I don't remember much but a word comes up, Californication.
Lost and Battlestar Galactica
When these shows ended, half of the fans felt like betrayed. They were bulding up expectations and fans were collecting the little clues, talking about them on blogs, analyzing screenshots and so forth. It was not obvious for the fans that there is no coherent, logical answer and there is no acceptable way to answer the main questions. It's time to repeat that only about half of the wans felt like this, I am one of them.
I have trust issues.
Since the last episode of Lost I just can't trust high-concept shows. What are the chances of getting a coherent aswer for the big questions asked in the pilot? Did we get an an anser like that at the and of Awake or in the ongoing episodes of Revoluiton, Alcatraz etc? If I watched these kind of shows I could add here more for examples but the point is I don't.