Mister Hatt, not all American TV shows are 30fps, some of them are 24fps. Also, if he decimates to achieve 24fps that while the footage may be choppy it would not throw the audio off. Additionally, if he is ripping Dexter, I'm fairly certain that show is 24fps. Getting details is the key factor in trying to help someone out with the problems they are posting about. If you apparently know exactly what they are working with, and know the problem they are having, then why have you not posted the solution already? How about we let them post details, give them things to try (or the exact solution) and actually help them instead of bickering over a forum thread. Acting like a dick all the time doesn't make you more right about anything, it just wastes forum space and causes thread to become unnecessarily long.
Dext3r, if you wouldn't mind try posting as many details as you can about the source so we have more information to work with.