Posted 31 October 2007 - 09:15 AM
Here is my 0.02 on these two topics:
If you do a search in the AVS, possibly this forum, and the 'net in general, you will find lots of discussion about white flashing. I saw this first about 9 years ago when I first got my Philips 35" SD tube TV. I was freaking out, because I was convinced it was the TV. I eventually got over it, mainly by watching less hockey, where it seemed most prevalent. I also notice it during bigtime college basketball games where the court is a lighter color. This happens during nationally televised Georgia Tech home games, for example, though not all the time. And again, this is my experience, and yours may vary.
I've heard a number of theories, ranging from the way feeds are supplied to uplink providers like Comcast in the Philly area, flash photography, and "its all in your head". The two theories that seem most plausible to me:
- there is an action sports photography system where an installed light grid fires off at certain moments during a hockey or basketball game in order to provide a huge amount of light for photographers. Hmm, could this be the culprit?
- have you been to a hockey or basketball arena in the last ten years? Many of them have these coordinated display systems that literally ring the arena, usually between the first tier and second tier of seats. The advertising and booster messages that flash on these things is crazy bright, and these systems are coordinated so that everything flashes all at once. When it is going from a dark image to a bright image (or off to on), it is like they peeled the roof off at noon for a split second. On TV, the image usually is focusing on the rink or floor, and the "ring of fire" is just out of frame. I wonder if this reflection of this incessant flashing off of the ice or floor is also sometimes the culprit. Perhaps it causes the cameras an instantaneous burst of too much light, which saturates the image briefly, and it is this image that we see at home on our TVs.
Anyway, I thought I was going crazy until I researched this a bit. It definitely seems to happen most on hockey games, and I've only seen it on my big 35" tube or my 40" LCD HDTV, which are the biggest screens in the house and would show the most amount of white image (the rink). So, perhaps it could be a TV issue with larger screens where the amount of instantaneous bright image overloads the saturation electronics within the TV? Not sure I've got the jargon correct, but you get the idea.
TdF in HD:
As far as the TdF in HD on Versus/GCHD, I thought I asked this question (about cycling programs in general somewhere on the forum - should have been in this forum specifically, but I guess I posted elsewhere) previously. I think the issue is that most of the TdF coverage is from handheld cameras on motorbikes, supplemented with helicopter shots. The handheld motorbike shots are fed over RF to a receiving station; I think they actually are satellite shots, but not positive. At any rate, I think broadcasting HD under these circumstances is wishful thinking at this point. Frankly, only being able to see the Four Amigos (Phil, Paul, Bob, and Al) in HD, only to switch over to the SD moto coverage complete with signal breakups every mile or so would be too much of a tease for me. So, I'm guessing that, no, there will be no HD TdF coverage (of the race itself, anyway) any time soon. I hope I'm wrong, though. Oh, and the race goes on, regardless of the controversies.