Sorry for the long post..
Well from what I've heard, all CRTs will have some geometry issues (and I very well could have been misinformed, as I know very little about the subject), so this is no exception. I tweaked with the settings for a very long time to try and get the best picture. Being that this was my first HD experience, I was extremely impressed with how nice the picture was. The sound was also very nice. The only HD source I had available was my 360 (with GOW), which I hooked up for a bit. Absolutely wonderful.
I didn't get your message in time, so I didn't really know what to look for. I didn't mess around with the different inputs/outputs much at all, but I didn't see anything like that on the back. But please don't let this influence your decision, as there very well could have been one. I'd look again, but it's back in the box and ready to go back.
In the end, the geometry issues were too much. It wasn't bad at all, and probably wouldn't bother many people. I get crazy whenever it comes to things such as this, though. Any stretching or anything of that sort would drive me insane if I had to put up with it at all. I'm willing to give up some picture quality for a set (LCD) that would have no geometry issues.
If you can deal with the minor geometry issues, then it seems like a wonderful television to me. But again, I have very little experience with this.
I'm going to return this, as I just purchased an LCD as part of Circuit City's Thanksgiving Day special (same as the Black Friday special -- I was so relieved to see that they offered it online as well, so I don't have to brave the crowds Friday morning).
Sorry that I couldn't be of more help. Good luck with whatever decision you make though.