I'd agree. I think your speaking of Pipeline and Leanachen. You should have time to see both if the routes don't change much. There are bunch of sections with bridges at the start but not many the riders ride under in the section. To be sure, your DVD's will likely start with the section your thinking about as its often one of the first sections in the trial. If it's my DVD your looking at the sections are all named.
Oh way the way. There are many better sections than pipeline to see. Yes it famous but really its just a blast up a big hill. Not as easy as it sounds but not spectacular.