Can't watch videos on Discovery.com

Never had this problem on any other site before… but when I watch any video on Discovery.com, for example:
https://dsc.discovery.com/videos/mythbusters-duct-tape/?smid=FBMBU-FWP-PLP
I only get the audio. I see the cursor move and everything, but no image. I have Flash Player 10. I have the K-Lite codec pack with a bunch of codecs too.
Their site doesn’t seem to have any help section for these things, and google didn’t help me much either…
Tried with both Chrome and IE browsers.

Any ideas on what would be different on their site than on, say, youtube?

Works for me on both Firefox and Chrome.
Try these codecs.

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