All my videos here: http://www.zstatistics.com/
Here is the second regression video, taking a more advanced look at Rsquared and dealing with the troublesome concept of degrees of freedom.
Intro 0:00
SSR + SSE = SST 0:54
Rsquared 2:06
Degrees of Freedom 3:56
Adjusted Rsquared 9:43
Example 11:34