Need a little help understanding if a 3D-ready AV receiver is truly required. I should be able to connect my PS3 directly to my 3D TV via high speed HDMI for the video. I am thinking an optical digital output from my TV back to my Onkyo TX-SR507 receiver for surround audio. Would that bypass the need for a newer 3D-ready AV receiver? Any help would be great. Thanks.