A tv input question

[Sex Machine]

I know what damn near everything is, except for the DTV inputs? Looks sort of like component but with sync inputs also. Does anyone know what this is for, and what has used it?

Looks like some form of modified RGB or something, with also horizontal and vertical sync inputs.

 

[Kid Panda]

It allows 1080 display

 

[Sex Machine]

Wonder how hard it would be to do encoders for jamma games to work with it, the problem I could see is DTV having two syncs rather than one.