Excluding newsgroups from searches

[enchant]

Is there a way to exclude specific newsgroups from search results?

I search for "ballet" and get what appears to be thousands of results. But I don't want anything in dvd format. The lion's share of the results are in a.b.dvd.music.classical

It would be great if I could search for something like "ballet -newsgroup:a.b.dvd.music.classical". Is there anything like this?

[Quade]

You can filter IN the groups you want to search in but not filter OUT groups you don't want to search in. If you picked a group topic before you search, it would only look in the groups in the topic for the results.

[enchant]

Ok, thanks. Figured it doesn't hurt to ask.