Clint DeBoer said:
This is a routing issue thru the AVR.
I couldn't agree more!
Well I'm not familiar with Denon set up prcedures, but I just looked over the manuel for your receiver. From what I've gathered here are some things you may need to consider or check.
First of all by using the front connectors you are using a composite video connection. Since your AVR does not appear to offer up-scaling of video inputs that means you need a composite video out connection between your AVR and your TV. The current component connection to the TV will not carry the composite connection you're feeding it through the front aux connection.
Secondly you may have to go into your AVR's setup menu to assign the proper video and audio input's to a particular function (input selector) button such as AUX button on your AVR. In doing so you would need to assign the AUX button to receive its inputs (audio and video) from the from the front aux inputs. Then in order to pass the video signal along to the TV you are going to have to assign the video output for the AUX button using one of the composite connections available on the rear of your AVR.
Hope this helps...if you have more questions post again.