Originally posted by chrischaloner
I’m fairly sure they *are* NTSC conversions. The difference is most clearly visible on the DVDs between the “Very Best Of” compilations and the actual episodes they included as "extras". The compilations are extremely sharp, but the episodes are much softer looking and the colour balance is different. There shouldn’t be any difference in sharpness or colour if they were both PAL as they'd be from the same source.
I've not checked, so this is speculation, but it's not impossible that the eps were done at a lower bitrate than the "main feature", which can cause that kind of problem. In any event, the "Best Of" compilations were edited together years ago, and could well have been put together from different source tapes. I don't have the faintest idea where Columbia got their masters from, but it's more than likely that they are a few generations down from the originals, and if they've been through any analogue format, there will be noise, and the picture will get softer...
As for colour balance, I've got multiple recordings (all PAL) of several episodes, and the colour balance, signal level and contrast varies wildly from one to another
The only way to guarantee consistency would be if all the copies were sourced from the same *digital* recording. Any time you play back an analogue recording, it has the potential to look different.
Obviously the Brian Henson intros are NTSC, and the clips from the episodes used during those are from the NTSC copies, since they come from US TV. Compare those clips to the actual episodes straight after and there’s no difference = NTSC.
Do we know for a fact that they were shot as 525/60? If they were done with a digital camera, which is quite possible, it's much more likely that they would have been done at 24p, so there wouldn't be any conversion artefacts when transferred to PAL, and they could easily have been done at a higher resolution.
In the case of VHS, I initially started to suspect the episodes on the HMV box set were NTSC during the first episode, and compared them with my VHS copies of the “Very Best Of” tapes and the off-air copy of the Leo Sayer episode I have from the 80s BBC 1 repeats. It was obvious from the VHS-VHS comparison and the DVDs just confirmed it.
They’ve done a good job converting them (no “Claws of Axos” style problems or anything) but they do still look converted.
Seriously, they're not NTSC conversions! I've seen enough video to be able to look at something and immediately identify a) the video standard, b) the approximate age, and c) usually identify the (original) tape format and cameras used
Modern VHS releases look uniformly terrible due to the cheap and nasty tape stock in use (I've got off-air VHS which looks miles better than most of the pre-recorded stuff I've bought in the last few years!), and there's plenty of interesting ways to mess up a DVD picture!
There is also absolutely no reason for them to have done something like this. Consider: the US masters are cut, and the recent VHS/DVD releases over there must have had to go back to the PAL originals to obtain the UK skits. Since the PAL tapes are uncut, why would Columbia have paid for a second standards conversion?
Regardless of how well a conversion is done, there's always motion artefacts. I can't watch PAL->NTSC conversions (or 3:2 pulldown conversions) - I find the motion judder and blur totally unacceptable. I haven't seen any evidence of this in the DVDs (didn't watch the intros
.
The other dead giveaway is that if you were looking at a PAL->NTSC->PAL conversion, the frames of the final PAL copy would almost certainly not be a precise match to those of the original. I've got broadcast PAL copies which I have run side-by-side with some of the HMV tapes, and they match exactly.
Finally, I've seen some of the US DVD releases, and the UK ones beat them hands-down for picture quality ;-)
As you appear to be a Doctor Who fan (judging by your sig), you should be fairly good at spotting a CSO “halo”. Look at the “little fishies” song in the Mark Hamil/Star Wars episode on the DVD or the Bob Hope episode when he’s on the horse at the end from the HMV box set. The whole picture has been blurred by the conversion process, and it makes the CSO less obvious. Just think what the “fishies” song would look like in PAL! It’d be something like that shot from Time-Flight where Nyssa realises they aren’t at Heathrow!
Once again, cheap tape stock, signal processing, noise reduction and a low bitrate would all have similar effects. Plus, having just checked against the French DVD of the Bob Hope show, there never was much blue fringing in the first place. (And yes, those DVDs are definitely PAL!)