You have to be more precise, no specs at all were mentioned. is it a 720p or 1080p tv?, do you have any latency-expensive modes running on the tv? Is it aspect-correct on both the tv and monitor? (4:3 on 16:10/9)
^ What Justin said. Sit far away from your monitor, and it will be just as clear. Monitors are also sharper than TVs are, because you're meant to sit really close to them. Are you sure you have the proper aspect ratio for your monitor as well? It shouldn't be stretched. Running 4:3 on a 16:9 monitor is going to be…
In all seriousness though: A. Most CRT monitors are no longer being produced B. You'll have to pay a premium for a decent, newish quality CRT C. The half life on CRT's means that, if you get one of the many, very old crts that are out there, you'll likely have one that has faded a good deal D. So, for the cost of getting a…