@Tiz,
If you want to try to play the videos over USB from the camera on your computer, you will surely have problems to view them properly. The bitrate is extremely high on the original video (up to over 33 Mbit).
If that is the problem, download the videos from your cam and try again. For me, VLC Mediaplayer (Videolan) works great and without stuttering.
I personally like the 23,976 fps much more than the 30fps from the sx200is. If you are using PAL on your TV, there is only one frame/sec added to the PAL specified 25 fps. On 30fps 5 frames were removed to meet PAL specs and that is really horrible.
I don't think that the monitor refresh rate has anything to do with your problems.
Not heard of such problems until now.
Try to convert the video into another container format like avi, mp4 or mkv. Most systems have problems with the mov container. You don't have to touch the h.264 video stream, only change the container.
The SDHC or SDXC Card can make problems too. For me, Sandisk Extreme 16G with 30 Mbit/sec works great