OMG, the Russian lady said a totally bad word at 4:00!
Seriously, thanks for linking that -- it's really cute, and perfect for beginners.
Although I did think it was a bit repetitive (and confusing to foreigners) to use удав (a "snake" of the boa/python/anaconda type) as an example for У, after already using змея (a "snake" in general) for the letter З. I mean, there are lots of other simple, concrete nouns that start with У in Russian -- coal, smiles, oysters, ears, mustaches...