If you search the archives, I think I posted it awhile back:
If I can recall correctly, there are only 6 intervals but I heard there 7 with the dvd. I have only seen the FitTv version.
Also it goes from interval 2 routine to interval 3 routine without a blast. I may have the intervals wrong. But there is a blast missing.
And there is no stretching either. I still get a great workout with the FitTV version.
Colleen