Davinci resolve
The below video is an example of a screen cast tutorial. The tutorial elaborates on the basic setup and use of DaVinci Resolve, a powerful color grading software.
ELO Instructional Video
The below video is an ELO tutorial that I created when I worked there from February 2012 to January 2013.
NOTE: At the present time there seems to be an issue with audio playback from Youtube as well as resolution playback.