This video was not coached. It tries to capture Liam's natural acquisition process, his ability to process and produce oral language in both Spanish and English at 4 years of age. The video includes casual conversation and some developmentally appropriate academic language (ABCs, numbers).
As before, If you're interested in bilingual education/upbringing, make sure to check out these awesome sites:
http://www.francoisgrosjean.ch/for_parents_en.html
http://www.colorincolorado.org/