I never watched Lost; either I was already invested in another show during its timeslot, or by the time I'd heard that it might be worth checking out, it was too much effort to catch up on all the episodes (or it was a combination of those two factors). I've seen the promos for Alactraz several times over the last month, and it still doesn't strike me as something I want to get involved with.
However, I have become hooked on the two based-on-fairy-tales series on TV: Once Upon A Time, and Grimm. And I recently learned that Once has at least some of the writing talent from Lost on its staff, so maybe that'll draw in some viewers. I can't compare it to Lost, but as I understand it that show did use flashbacks regularly, and that's a main part of the storytelling on Once Upon A Time. The short backstory is that the Evil Queen (from the tale of Snow White) has cast a curse that plunked all of Fairy-Tale-Land into our world as a small town and implanted fake memories so that none of them has their happy endings anymore...except for the Queen herself, who's supposedly the only one aware of what she's done. But Snow's grown-up daughter (played by Jennifer Morrison, from "House") escaped the curse as a baby, and has been drawn into the town so as to break the enchantment. As she goes around changing people's lives for the better, there are flashbacks to those people's FairyTaleLand selves, so you get a kind of parallel storytelling as you see both how they lived before the curse and then reclaim some measure of that in the "real" world. Plus, there's lots of Jennifer Morrison in tight pants, boots, and tight shirts; and apparently the Evil Queen's FairyTaleLand wardrobe is designed to heavily feature her cleavage.
Grimm doesn't have anywhere near as many female roles, but is basically a police-procedural show with a supernatural element. There are people with supernatural inner-selves based on stuff from fairy tales, and the lead character is a cop with the special ability to spot those inner-selves, and many of the cases involving these people have elements based in those stories. Like a girl who breaks into an empty house that just-so-happens to be owned by a family of "bear" people. But probably the most enjoyable aspect of the show is that the cop has befriended (and gotten help from) a "big bad wolf" who's been working to reform himself (the "wolf" gets a lot of fun dialogue).
Ooooh, with all this talk of supernatural stuff, I just reminded myself: the new season of Being Human (the US version on SciFi, which has proven to be an excellent show) just started this week! Off I go to watch on Hulu!