Complex sentence: Currently, the weekday broadcasts are anchored by Brian Williams, while the weekend editions are anchored by Lester Holt, however; due to Williams serving a six-month suspension which began February 10,2015, Holt is anchoring the weekday newscasts on an interim basis.
Split into simpler sentences: Currently, the weekday broadcasts are anchored by Brian Williams, while the weekend editions are anchored by Lester Holt. But due to Williams serving a six-month suspension which began February 10,2015, Holt is anchoring the weekday newscasts on an interim basis.