Help me with my setup- please :)

[Tichols]

Hi, so I've been a member here for sometime now, but in all this talk ive begun wondering if my setup is ok - or could it be better!?
I have a philips 32" 32PF9731D/10 - setup with the ps3 and a denon 2808
The PS3 is linked to the Denon with hdmi, and another hdmi cable runs from the receiver to the tele..
I cant decide wether to set the output to 720p or 1080i - I have never quite understud the difference between progressive and interlaced - but it seems to me that the 720p output is sharper..
I honestly read somewhere that my tv was 100hz - but the info guide below claims its only 60hz - :S dunno - cant seem to find out anywhere.. Anywho the ps3 is set to run bds at 24hz - and does 7.1 pcm audio.. which i think it does - sometimes its as if the frame rate is very low though..

I should add that im seated at about 1,5m/ 1,5 yard from the tele..

Anyone have any thoughts or comments?

Link for info on the tele:
http://www.p4c.philips.com/files/3/3...10_pss_aen.pdf