Au-delà des murs: ARTE's escape game to unlock an episode
Providing early access to the first few episodes of a new series by premiering them online has become rather common in the past few months. European culture channel ARTE followed that trend, but chose a slightly different approach by letting the audience “work” for it.

To watch the first episode of the upcoming three-part miniseries “Au-delà des murs” (“Hinter den Mauern” / “Beyond The Walls”) before its TV premiere, viewers have to complete an escape game on the website. […]