WOC 2017 has started and TV/GPS tracking for the events is being provided on line by IOF.
At the following link, click Live Orienteering on the top right corner and follow the links to WOC 2017
To watch the events Live you need to open an IOF account and pay about 6 Euros per event. But you can watch simultaneous TV and GPS of the events the previous day and earlier for free!
If you just want to watch video highlights, the easy way is go to YouTube https://www.youtube.com/ and search for WOC 2017.