I saw this sample a long time ago. It just shows how to use dve functions, and btw it's not correct sample for interlace TV.
FuSa is much more complicated app, and uses a lot of other tricks not just simple dve functions calls.
As for programms which use this sample - they are completelly adapted for TV out.
And as for official games - have ever you seen one with TV out support?
So this sample is just basic way "how to use TV out".