He is mainly active in weekly columns -- in the past in LOCATION@1 and presently in Libération -- and on a television show : `` Arrêt sur images '' -LRB- `` Freeze-frame '' -RRB- , broadcast by the public TV channel LOCATION@2 NUMBER@1 .

He also can be seen on the television program Arrêt sur images -LRB- Freeze-frame -RRB- , broadcast by the public television channel LOCATION@2 NUMBER@1 .
