Alright, let's get this started.
Episode 001: The Beginning
To start the series, we have our earliest images of the island. This contains the entire episode of "Across The Sea", where we see Jacob's origins, along with his brother. We also see the earliest time flash, when Locke turns the wheel to stop the island from moving.
The episode runs 47:27, and is approximately 392MB to download. You can stream below (via Facebook), or go here to use torrents (better quality, recommended) to download the episodes to your computer.