Thanks to Steve for the following.
The "Totally Lost" videos are up for the week.
Teaser #1 for “The Substitute”
John finally gets to meet the big man upstairs
Teaser #2 for “The Substitute”
UnLocke doesn’t leave Richard Alpert hanging
Teaser #3 for “The Substitute”
Sawyer gets drunk on raw power
Teaser #4 for “The Substitute”
Benjamin Linus learns that if you’re going to kill someone…
…you’re obligated to say something nice
You can see the video here.