Originally Posted by Gianni
I need to understand if it can be configured to output vanilla Dolby Digital which can then be extracted by the HD621 for surround sound.
The HD621 can extract a Dolby Digital stream and pass it through, although cannot decode DD itself. The other thing to try is to set the Sky Stream to output LPCM which the HD621 handles directly - this may be stereo rather than multi-channel depending on the Sky Stream box capabilities.

The above may not be what you want but would at least allow you to get something working and to test. As you are outputting to a 1080p plasma, having the HD621 in the path will not limit the video resolution.

808v6, M60, MC200, HD621, Lumagen XE, 504, SB Touch, 563, 201, 204, 208, MPMAX 221, M80, Explorer, Explorer2.