From what is being said does that suggest that the first Anytime download is from the Movies HD 2 downtime and the second from the superior quality of Movies HD 1?
Yep. Typically the Anytime HD stuff is fed in a time-shifted and round-robin fashion via both Movies HD1 and Movies HD2. For instance, a given program will be fed first via Movies HD1 starting at around 3:07 AM, and then 30 minutes later via Movies HD2. So if your box records it from HD2 you'll end up with a lower bitrate version.
Things get trickier with Lost because new episodes have also been fed to digiboxes ahead of time, prior to the Sunday night premiere on Sky One, but only via SM HD2. Then the same episode was fed again, on the following Monday morning, but this time via
both SM HD1 and HD2 (30 minutes later.)
Basically there are three versions of Lost in HD available to us -- and the quality differences between them are substantial. It goes something like this:
Anytime Service 3896
(11798 H) [size=+2]
>[/size] Sky One HD
(12344 H) [size=+2]
>[/size] Anytime Service 3897
(12344 H)
And that's not taking into account the higher-bitrate test version of Sky One HD, on 11798 H, since it is not accessible via the digibox. Besides, lately it has stopped carrying an audio PID altogether, so it's of no use to anyone at the moment...