TF1 series ‘Le mystère de la chambre jaune’ sees viewership decline

The TF1 mini-series ‘Le mystère de la chambre jaune’, starring Benjamin Baroche, Claire Romain, and Pierre-Yves Bon, continues its broadcast on Thursday, September 10, 2026. The series, an adaptation of the Gaston Leroux novel, follows a journalist named Jo investigating a mysterious attack in the Gorges du Verdon.

While the series maintained its position as a national leader for TF1, viewership numbers showed a decline. The first episode of the evening drew 3.24 million viewers (19.9% market share), representing a 4.8 percentage point drop compared to the previous week. The fourth episode gathered 2.57 million viewers (21.1% market share), also seeing a weekly decline of 3.7 percentage points.