We've had a bit of delay getting videos from the latest class session posted to the website--there was an issue with slide capture resolution. I just got word that the videos are mostly ready, now going through a final review, and should be available soon, hopefully by the end of this week. In the meantime, the link has been going through a number of random changes--I checked it last week and found a completely different set of content, unrelated to our instruction on the Intel Xeon Phi coprocessor. Hopefully the access denial you saw was just transitory and should disappear once the intended content from the latest session appears.
p.s., I just checked the link above and saw the same, incorrect content that I saw last week. My guess then is that external access to that link has been suspended until the content links for videos from the new session can be constructed. So hopefully by next week all the links will be back and accessible. Sorry for the delay.
