Lost is easily one of the most memorable tv shows of all time, TV classics. Its highly creative plot and engaging characters makes it one of (in my opinion) best shows of all time.
The first 2 seasons of lost are iconic, tv gold, however that was because that was all the producers were expecting to do with the show, however as the fan base grew, so did their desire for more seasons, season 3 was also highly successful in my eyes. It was only around season 5/6 where the lack of plot became evident as things were becoming more confusing and less explained, however, for me lost was always about the characters not the story.
however this show is still a tv must watch, highly recommend it!