I'm just curious about how the dedicated de-interlacers i.c.s do a better job than the integrated dvd decoding + de-interlacers i.c.s built into dvd players? What exactly do the best ones do right and the lower end ones do wrong? How would it manifest itself onscreen if a de-interlacer was designed poorly? Most of the de-interlacers seem to eliminate jaggies successfully. Can anyone give me examples of hardware fitted with the very best de-interlacers and the very worst de-interlacers?