Jetrell Fo said:

So, is there a better than DVD5 source for these? They look nice for their size but I'd guess these were made from raw capture files .....

They are DVB captures, I believe (there are visible signs of signal breakup in TESB at the end of the duel in the cave). DVB is usually captured directly bit-for-bit to a hard disk from the transport stream that has been broadcast. It is also broadcast in MPEG-2, often at lowish bitrates due to broadcast bandwidth limitations, and at DVD resolution. Some broadcasters even broadcast video at a resolution of 480x576, if my memory serves me correctly.*

The best source you could have is the original DVB capture, but unfortunately it is unlikely that it would have a significantly better quality, and would likely still suffer from the compression artifacts that plague MPEG-2 video. I also doubt it still exists after 10 or so years, as I doubt that it would have been viewed important to preserve it at the time (pre-2004).

Even if they had been captured raw from a connection to a satellite/cable/terrestrial receiver, the original source is still MPEG-2, I'm afraid.

*EDIT: I don't believe TB was, but its just an example of the kind of limited bandwidth we're talking about here, at least in extreme cases.