Complex sentence: In 1980 Viacom would buy 106.7 WRVR (now WLTW) but in 1981 WWRL was donated to the United Negro College Fund.
Split into simpler sentences: In 1980 Viacom would buy 106.7 WRVR (now WLTW). In 1981 WWRL was donated to the United Negro College Fund.