Obviously there's no purpose in doing it this way except for bragging rights...
I've found the performance of HiDef (any sort) played on my laptop can be,for the want of a better word, crap.
.ts from the Humax won't play very well at all. Sometimes a conversion to mp4 (just using ffmpeg to copy sound/vision into an mp4 wrapper) will make it playable - just. Usually I have to return it to a Humax for reliable playing. Restricting the size of a VLC window doesn't improve things for me - resizing the output of the encoder to a smaller resolution does (obviously).