Complex sentence: In August 2001, Univision purchased the stations and converted them into Spanish language outlets; some affiliated with Univision, but most joined its new sister network, Telefutura (now UniMás), which launched in January 2002.
Split into simpler sentences: In August 2001, Univision purchased the stations and converted them into Spanish language outlets. Some affiliated with Univision, but most joined its new sister network, Telefutura (now UniMás), which was launched in January 2002.