Complex sentence: Cuomo's youngest son, Chris Cuomo, was a journalist on the ABC Network newsmagazine "Primetime" and anchored news segments and served as co-host on "Good Morning America" but moved to CNN in 2013.
Split into simpler sentences: Cuomo's youngest son, Chris Cuomo, was a journalist on the ABC Network newsmagazine "Primetime". He anchored news segments and served as co-host on "Good Morning America", but moved to CNN in 2013.