Video lectures on graduate level Classical Electrodynamics
My understanding of Graduate Level is an overlap between JD Jackson's Classical electrodynamics, Landau's Electrodynamics of continuous media and Landau's Classical Theory of fields. Unfortunately, there isnt much video material out there, which is justifiable because there is no great pedagogical need here. If you understand Griffith's level electrodynamics the Jackson's book is an advanced methods to solve sophisticated problems book. Which is best learnt by doing problems.
ALthough I am not greatly impressed, this is a set of video lectures that treats Landau and Jackson as textbooks.
http://vubeam.pa.msu.edu/lectures/phy962/962d/electrodynamics/
It might be worthwhile to have a look at Leonard Susskind's lecture on classical electrodynamics and classical theory of fields in the special relativity module.
http://www.cosmolearning.com/video-lectures/electrodynamics/
If you're looking for companion notes, then these lecture slides would help you a lot more specifically with understanding the material presented in Jackson, I found it really helpful.
http://physics.gmu.edu/~joe/PHYS685/
https://ocw.metu.edu.tr/course/view.php?id=226
The above link has a list of videos for the Graduate Level Electrodynamics course. But it is more of the Classical Theory of Fields by Landau and the sections from Electromagnetics in Continuous Media is not present. Still this course deals with Gauges, Green functions, Scattering, Diffraction and Covariant Formulation (a.k.a. tensor formulation of Maxwell Equations). I haven't looked at complete playlist but this is a good one to go for.
They even provided a YouTube playlist link for easy streaming!! Here is the link: https://www.youtube.com/watch?list=PLuiPz6iU5SQ9d1uu1NrVO2BmCuyfddILt&v=LPnlqV5dGVI