Thanks to Benjamin from http://lost-spoiler.over-blog.com/ for the following.
Episode 6.01-02 "Los Angeles - Part 1 & 2" (Quebec)
Episode 6.01-02 "LA X - Part 1 & 2" (Belgium)
Episode 6.01 "We erase everything ... - Part 1" (France)
Episode 6.02 "... and we start again - Part 2" (France)