Simplify the following text for a Grade 8 native English-speaking person.
Original: He is mainly active in weekly columnsâ '' in the past in Le Monde and presently in LibÃ ration -- and on a television show : `` ArrÃ t sur images '' ( `` Freeze-frame '' ) , broadcast by the public TV channel France 5 .
Simplified: Schneidermann has written in Le Monde and is presently in LibÃ ration . He also can be seen on the television program ArrÃ t sur images ( Freeze-frame ) , broadcast by the public television channel France 5 .