Quick tech note about IE 11 and the popular streaming platform Granicus.
With some setups you will hear the video, but you will see a black box where the video should be displayed. The controls are there because you can click on them, but you just can’t see anything. This assumes that you have already installed Flash and Silverlight.
The fix is Compatibility View. Goto View–>Compatibility View and add in “granicus.com” to the list of websites to make compatible. Close and reopen your browser and you should be able to see the video and controls for your video.