No strictly Jingles, though their imaging is quite nice, but Studio Brussel has recently added live video to their website at
http://www.stubru.be/live so you can spot when the jocks are in live-assist. Worth a listen anyway, as their music is a bit more accessible than 6 Music, and if you can cope with the Double-Dutch it’s a reasonable listen.
Are there any other stations that do 24/7 video? I know Radio One do occasional Visualisation stuff.