Over the years, it seems that each and every time I see someone connect up a laptop to a TV via HDMI to show video the playback is ALWAYS choppy. I've seen at least 5 brands of laptop, low end, high end. I've seen this playing streaming internet video, from a file like an mkv, and direct from a DVD in the laptop's DVD ROM. In fact I don't believe I have ever seen a laptop stream video to a TV and it not be choppy.
Having said that, I hypothesize that the issue must related to how the video signal is sent to the TV, and not the performance capability of the laptop itself or the TV. I think it's in the interface settings maybe of some sort?
I am posting this just for some general discussion of what might cause this and since it seems a universal problem, what might be the solution, if there is a single solution. Please discuss and let me know if you have solved this problem for your particular laptop/TV combination over an HDMI connection.