Yeah, I think one of the earlier DVDs had some more scenes so you could compare, but it was very WHY WOULD YOU DO THAT???

Admittedly I don't listen to a lot of DVD commentaries but it's definitely something that doesn't get talked about a lot - but then plenty of technical details don't. I think it only came up once in the Red Dwarf commentaries, and even then it was a casual 'oh yeah, that was tricky, wasn't it?' and back to taking the piss.