That's a good question. Maybe they removed the WMV file? The MP4 file is still available:
Code:
youtube-dl -f "mp4-701k" -g "http://www.rts.ch/play/tv/36-9%C2%B0/video/369%C2%B0-troubles-bipolaires-entre-euphorie-et-depression?id=77119"
Code:
http://download-video.rts.ch/36/2009/36_10282009-701k.mp4?start=00:00:00.000&end=00:47:57.816