Indeed I did. Here's the GSpot output for what I was watching:
https://pic.armedcats.net/n/na/narf/2009/11/17/wettendass.png
Stereo. Silly DVB-T stream doesn't contain more
Trust me, it sounded almost like sitting in a concert hall. I liked it a lot.
PS: I just checked the TG release. All the Segments are stereo, only front channels used. Technically the entire broadcast is 5.1 though because the lady talking at the end is also using both the center and LFE channel.
What a pity. Thanks for looking into it. Now i am officially sad... i hoped Topgear will use audio more...