Is my DVD interlaced?

"Kristian Kjærgaard" <[email protected]> Thu, 17 Jul 2008 00:37:40 +0200
Newsgroups gmane.comp.video.dvdrip.user
Message-ID <[email protected]>
According to http://www.exit1.org/archive/dvdrip-users/2004-02/msg00044.htmlit
is possible to check whether a DVD is interlaced or not by looking for
"yes'es".

Are there examples of such "yes'es", so that I know what to look for?