Oppo 103 digital processing

Sorry for the uninitiated question -

Would there be a significant enhancement to my video quality if I hooked the HDMI output from my Motorola/Comcast HD cable box to the HDMI input on the Oppo 103, then ran the 103's output to my display - passing my Cable viewing through the 103?

If the Oppo would does decoding and HDMI input switching, it would be intersting if someone build a Multi channel HDMI DAC with volume control. You could run your HD receiver, possibly a gaming device into the Oppo, and the Oppo into the DAC. No need for a SSP anymore.

just got the Oppo 103 as well and looking at the same question, from what I gather oppo suggests for better video/audio to plug HDMI 1 into TV HDMI for video, and HDMI 2 to the receiver(BD)HDMI for audio, I also use the FR/FL interconnects of the Oppo 103 to the analog stereo audio on reciever or amp for analog stereo music.
Will probably call Oppo tech to make sure I got it right first

Forgot, BTW the two HDMI on the Oppo 103 are outputs not inputs.

@Tesseract86

Nope:

From the official Oppo website:
Dual HDMI Inputs – Connect external devices such as set-top boxes and network streaming devices to take further advantage of the excellent audio and video processing functions by the BDP-103. The BDP-103 offers two HDMI inputs, one on the front and one on the back.