I haven't had any equipment needs or issues for a while, so I have been away from this forum. I recently had a issue (not 4K related), which caused me to purchase the TE HDS-42AVR from Outlaw as an HDMI conditioner. I installed it yesterday.

To answer some questions, the Outlaw version of the device has 4 HDMI inputs that can be selected manually or via the 975's remotes. Input 1 is tied to the 975's TV device code, 2 to the Disc device, 3 to the Game device and 4 to the Video device. On the 975, each of these devices should be set to the same HDMI input (typically HDMI-1) for both video and audio. The Aux device can be set to another HDMI input or analog input . The Aux device and the 975's console output their video on the 975's HDMI Output/ARC input port.

My initial impression has been positive. If anything the Cable TV picture seems sharper but this may be some sort of bias on my part.

edit - A minor nit, but you will need an additional HDMI cable for the HDS-42AVR to 975 link.