I watched the whole series, and by the time I got to Lost season 6, it started to get confusing. The first four were great, the fifth was just OK, but that sixth, just, no. They introduced the "flash-sideways", which were a bit off from the whole story. But the series finale was so frustrating, I don't even wanna talk about it. The fact that they were dead and most of them died on The Island, but we never saw that, and we don't even know when they died. What do you think?