Sasuke does not get killed.
Episode 107
He doesn't. >.<
Sasuke hasn't really killed Naruto yet. But i think he will the last episode.
Sasuke apppears in the first episode
Sasuke has not died yet.
Episode 109. an ep. or two later is when Sasuke retrieval arc. begins.
It was sealed into him in episode one. He first unleashed it in the episode where Haku nearly killed Sasuke. He first spoke to the Kyuubi during his training with Jiraiya before the chuunin finals.
Sasuke joins Orochimaru in the end of episode 109 but everyone(except Sakura) finds out in episode 110
episode 1001
Episode 211
Episode 117
He and the other sound ninja fight Sasuke in episode 109 (An Invitation from the Sound).
Kabuto try to kill sasuke in "Naruto episode 51."