acually, they made the curved 19 inch tv's all the way to the end and I have put several in my collection and they look great!
The biggest risk you run into with tubes in the newer tv's is that they used bonded yokes much more often in the newer tv's than they did in the older ones. Other than that, you pretty much have just as much chance as most in finding a tube that might work.
There are really only 3 things you can do on a visual inspection of a tube before you drag the TV home to try to swap it into your monitor.
Make sure of these 3 things:
1. Neck has the same number of pins and is same size.
2. Yoke is not bonded
3. Ears oriented the correct direction. Ears should be on the neck side of the implosion strap, not the tube-face side.
As long as those are met, then you have a likely candidate. You'll only know if the tube will work 100% correctly by trying it. Not all tubes that appear correct will work. Different CRT guns are present inside different tubes, and get matched to the yoke that was originally on the TV. If your yoke is compatible with the chassis that you're trying to hook up, then bonus. If not (and it will likely NOT be) you'll need to do a yoke swap, and that can mean degaussing, edge convergence, and gun incompatibility.
As to the lists that have been posted online, there have times that I have taken TV's that have the exact same model number and production date as those listed, and the tubes inside aren't the same as those found on the site. I don't think the TV manufacturers had specific tubes for specific TV's any more than car manufacturers have specific tires for their cars. I think they just have spec designs that need to be met to fit the case, but the tube/yoke combo was up to the subcontracted manufacturer to provide.