My current connections are as follows...
HDMI from sony up converting dvd to 1070 DVI in.
DVI out on 1070 to hdmi in on samsung lcd.
I also have s video going from directv receiver to 1070 and then to samsung for menu. My question is am I getting better picture from my directv programming by having these connections or would it be the same as just hooking up the dvd player directly to the tv and having the s video from the directv reciever to the tv. Is there any up conversion going on with the way I have it set up now or is the picture I am getting the same as if I had it connected to the tv with just an s video cable. Any other suggestions for connections?

Thanks