But seriously: The LD contained the error as well? Because this is obviously an analog error. On the other hand halos can be caused by the excessive use of sharpening filters (though this wouldn't result in halos as big as in your capture). But to my knowledge the composite signal is always inferior to a SVHS signal.
By the way, how are you resizing to achieve the anamorph image? There are some plugins out on Doom9 to add "artificial detail" when scaling up... although the Xsharpen-filter already helps alot here.