LOST Season 4 Episode 5 The Constant Video Clips February 21, 2008 by Seat42F Twitter Facebook Pinterest Flipboard Reddit Email Lost – The Constant – CTV Promo Lost – The Constant – US Promo Lost – Season 4 Episode 5 – The Constant – Sneak Peek #1 Lost – Season 4 Episode 5 – The Constant – Sneak Peek #2