The Joomla video tutorial focuses on Joomla templates back-end management. Also get an overview of the font-page of each default Joomla template and T3 blank template.
Joomla video tutorial on Joomla modules: overview, management and then showcase. The Joomla video will give you a general picture about Joomla Modules.
The Joomla video tutorial with step by step instruction to create multiple languages Joomla site. This Joomla video tutorial can also apply for Joomla 3 sites.