A New Episode of The Vampire Diaries is on the CW Network tonight at 8 pm.
It is entitled Blood Brothers.

Below is a synopsis and promo for the episode.

Synopsis:

ELENA LEARNS WHAT REALLY HAPPENED WHEN DAMON AND STEFAN WERE TURNED — While Stefan struggles to come to terms with his past, both he and Damon reveal parts of their history to Elena, until she finally learns the truth about how they became vampires. Pearl has an ugly confrontation with Jonathan Gilbert. Damon and Alaric try to find a mysterious invention before Jonathan does. The friendship and flirtation between Jeremy and Anna continues to grow.