Posting this later than originally intended, but Midsummer and Euro 2012 suggest that it’s in fact a fine time to share a rather long (and rambling, in some cases—future videos will try and be a bit more organized!) video discussing the Kingsguard knights in the reign of Aerys II Targaryen, also known as the Mad King. This and many other videos can be found at our Youtube channel!
Note that if you’ve not read the books, there are spoilers—namely concerning the third novel, A Storm of Swords, but also touching on A Dance with Dragons.