I've actually been somewhat afraid to mention this, oddly fearing that it will come to pass, but the logical thing to do in ATSC is to use MPEG2 SD for one channel, and an AVC sub-channel for HD. That way, no receivers stop working. You'd have something like 15-16Mbps for the AVC channel, which is plenty. Sure doesn't mean that everybody will stay happy though! On 21-Jun-05, at 11:49 PM, John Willkie wrote: > Adopting AVC (or VC-1, I presume) is the same as changing > modulation? Only > to an integrated receiver, perhaps. > ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.