No "upload_date" in json dump of "TED" videos

[kuerbis]

if youtube-dl --dump-json http://www.ted.com/watch/ted-institute/ted-bcg/vishal-sikka-the-beauty-and-power-of-algorithms | grep -q upload_date
then
    echo "Yes"
else
    echo "No"
fi

This returns "No".

[dstftw]

Obviously, because there is no upload_date available on this page.