Pairing the Axioms i am getting on Monday to a Denon 2805.

My question is with video sources from my dvd player and my cable box. Should I send the video and audio through my reciever or should i send the video straight to the tv kind of like cutting out the middle man and the audio through the reciever.
If it helps tv is 34xbr910
dvd is pioneer dv-563a
cablebox is SA 8300hd
Any help would be appreciated

Tas