Complex sentence: Bianco originated the role of Dora in the national tour of "Dora the Explorer Live", and was a contestant on season six of "America's Got Talent", but received no air time.
Split into simpler sentences: Bianco originated the role of Dora in the national tour of "Dora The Explorer Live". Bianco was a contestant on season six of "America's Got Talent", but received no air time.