980..Which is the best setting?

[mbalari]

Hi, I need to know which is the best form to connect: an oppo DVD, The Denon 3806, and the LCD LG TV.
All off them has HDMI
I wish to see TV at 740p, listen DVDA and SACD for 3806.
Can I use HDMI cable only?
Which is the best setting?
Thanks so much.