Though this is very old, I should point out something about the GXP DVD release:
In Japan, it was first broadcast on TV, like most anime. Then they released the DVDs... Which I bought at their release.
These DVDs have alternate versions of some scenes, many of which include removing "blockages," alternate
"angles," "re-shot" sequences, and a few other similar things. The episodes were not any longer than
they were before, they just, in general, had more ecchi content, and a few scenes had more complicated views (i.e., one
location ended up adding lots more technicians, trailers, and cables, in an experimental lab sequence. These non-ecchi
scenes appear to have been created because during production, they didn't have enough time to do all the work (a
common issue with TV anime), and just completed the work after the episode was presented for broadcast. There really was
no other possible reason for some of the scenes that were different.
It's odd, but I was unaware there were any alternate DVD versions. I thought VAP, in Japan, only released the first
pressings (which included the Tenchi Radio CDs) and the no-CD version, and the version Funimation released in the US.