I watched it all, not sure why.
Daft as this is, I only watched Lost in 2016, went through it all in 3 weeks. The inital phase, first 2 series. No other series has had me so gripped, in my opinion it went a bit mad on lost its way a bit. It could have been much better in the final 2 seasons, maybe a fight against survival and getting off the land for good.