The films were transfered in HD in 2001 with the blue line because that's on the negative; the 2003 Lowry HD master either had the same problem or painted it out; the re-releases either continued to have it painted out, or if it was previously in, painted it out; this version was given to SkyHD; shortly after, the truck matte shot was re-done and given to Sci-FiHD.
the sky version was at least a year after the sci-fi HD version (was broadcast in august 09 iirc) but has the original truck shot not the new CG version shown on the sci fi channel! this is the sort of thing that the official sites should advertise as "news" even some of the indy fan sites didnt pick up on it (i guess its just me being sad ha ha!)
That's true, but for whatever reason they didn't use the newest Sci-Fi master, but the master from the previous releases. Maybe Sci-Fi network had an exclusive deal, or maybe Paramount was charging more money for the "enhanced" version.
Basically, as I understand it, there are three different masters: 1)The original HD version from 2001. 2) The Lowry version from 2003 without the blue line (Lowry likely painted it out). 3) The altered version from 2008.
Maybe SkyHD purchased and recieved the film before the latest enhanced version was ready but simply didn't show it until a year later. There could be many explanations, so for me it's not all that weird since the master was changing every two to three years (there might even have been a fourth master, created in 2007, if the original 2003 Lowry release did indeed have the blue line still in it).