Complex sentence: She then started presenting on M6 with "Politiquement rock" from 1997 to 2000, and in the meantime, she presented flashes on M6 Music as well as "Le live du vendredi" in 1997.
Split into simpler sentences: She then started presenting on M6 with "Politiquement rock" from 1997 to 2000. In the meantime, she presented flashes on M6 Music as well as "Le live du vendredi" in 1997.