I am curious about the interest in video processing on the 978 or any processor. Is it just a matter of convenience? I would imagine a true videophile would want to run the cable direct from source?
The problem is that in many cases the picture doesn't come from the directly from the source and the source standards vary. Cable and satellite companies and video streamers like Netflix step all over the pictures they send in order to reduce bandwidth. Pictures also come in different resolutions and may be interlaced and the various boxes, players and TV's often do a less then stellar job of upscaling and deinterlacing. Good video processors can help fix many of these problems. Per the ABT PDF on the ABT2015:
The ABT2015 features Video Reference Series™ (VRS™) technologies, including Silicon Image’s proprietary Precision Deinterlacing™, which provides arbitrary cadence detection as well as five-field motion and edge adaptive processing for an artifact-free viewing experience. The ABT2015 also includes Precision Video Scaling™ that independently scales an image horizontally and vertically as well as perform keystone correction, and includes MPEG and Mosquito noise reduction and picture enhancement to improve even high-definition images. The ABT2015 also includes Progressive Re-Processing™ (PReP™) technology; a unique processing method that recovers the original interlaced signal from a low quality progressive video signal for processing by the Precision Deinterlacing engine.