Merlin Season 4 start date = Saturday October 1st, 2011

'Merlin': Series 4 episode guide

Fantasy drama Merlin returns to BBC One this autumn with a fourth series, kicking off with a two-part opener.

> Order the Series 4 Volume 1 DVD on Amazon.

Episode 1
Saturday 1st October 2011

Click the link to see the spoilery description of the episode on CultBox's site