High Def Forum
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A few questions from a newcomer...

06-13-2005, 05:38 PM
Hi there, I've had my Samsung 42" HDTV-ready since Christmas, mostly used for playing games, and I absolutely adore it. I have a few questions that I've wanted to know the answers to for a while:

1. It's a rear-projection TV, but on the front of the TV is written "HDTV -- 1080i ready". Does this mean it can't be a CRT?

2. It also states on the front of the unit "Progressive 100Hz", does this mean that it just supports media in Progressive Scan mode (games for example), or actually outputs in Progressive itself anyway? And would a programme/film/game running in 50Hz/60Hz run at 100Hz on my TV? I can't really tell the difference if so :confused:

3. When I run an NTSC GameCube game in Progressive Scan on my (PAL) TV, is it actually outputting in 480p or upconverting it to PAL standard?

06-13-2005, 10:33 PM
No, it means it IS a CRT... only CRTs are interlaced.

Euro 100 Hz TVs double scan the 50 Hz interlacing rate... this doesn't improve your 25 Hz framerate, but does give a more stable image.

I'd think your GameCube would output 480p/60... I doubt your TV format converts that to 525p/50.

06-14-2005, 04:03 AM
Even though it says "Progressive" on the front and I can display in Progressive Scan, it's still interlaced?

06-14-2005, 07:27 PM
I'm not exactly sure with your Euro set, but interlaced CRTs often create a sort of psuedoprogressive at half res by putting identical data into both fields of the interlaced frame. A 1080i set can show 540p, for example... not the same as a set whose HD res is 720p, that's a real progressive HD set.

06-15-2005, 12:53 PM
I checked my manual and my TV supports 480i, 480p, 576i, 576p and 1080i, no 720p...what do you think would happen if I tried running a game in 720p on my TV? It's a Progressive set anyway, I can run games that are in Progressive Scan or choose to output in progressive regardless of what's being shown. What do you think? Would it upconvert to 1080i or even to a psuedo-progressive 1080? Thanks!

06-15-2005, 03:40 PM
480p/30 & 525p/25 are your only progressively scanned formats. If you hand it a 720p signal, it will go black.

06-15-2005, 03:48 PM
:confused: So I can't use 720p at all on my TV?

06-15-2005, 07:45 PM
Don't think so... if you try it, and it screws up, turn it off asap... will probably just give you an error.