Lost: The Complete First Season (2005)

Okay, we all know this ABC drama rules, so let's just go straight to the EXTRAS. The bonus features are as insanely comprehensive as the show is confusing. Not only do cast and crew contribute five commentary tracks (creator J.J. Abrams explains that Matthew Fox's No. 5 tattoo will become ''a crucial defining character point'' for Jack going forward), but they actually stop the pilot episode occasionally to show behind-the-scenes footage, like a four-ton chunk of flaming airplane engine accidentally falling near actor Dominic Monaghan.

An hour-long series of docs — including a fascinating one on how they bought a plane, destroyed it, and shipped it over to Hawaii — covers nearly every aspect of filming the pilot, while a separate doc goes through the entire season. Locke (Terry O'Quinn) teaches Walt (Malcolm David Kelley) how to spot a liar in one of 13 deleted scenes, and Sayid (Naveen Andrews) goes tie shopping in one of two previously unseen flashbacks. And we could tell you where to find secret audio transmissions from Danielle, as well as an alternate title sequence, but c'mon — what fun would that be?