From the moment Stefan had his first taste of human blood, he was a different person...

So states Damon on the April 29 episode of The Vampire Diaries. It's titled "Blood Brothers," and you best clear you schedule for next Thursday night: there's gonna be A LOT to talk about.

Flashing back to 1864 again, the installment will depict just how Damon and Stefan were turned into vampires. It's the reveal for which many viewers have been waiting months.

Also on tap: Pearl has a confrontation with Uncle John, and Jeremy continues to bond with Anna. Watch the official CW preview for this monumental episode now:

[video url="http://www.tvfanatic.com/videos/blood-brothers-preview/" title="Blood Brothers Preview"] [/video]

We're not done dishing on "Miss Mystic Falls," either. Check out our detailed review of the latest episode, and join in on the discussion about it in our Vampire Diaries forum!

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.