Most anime that is released is usually never an anime that has
1. Aired in Italy first with its own Italian opening/ending/score
2. Aired in Japan at a later date with a brand new Japanese exclusive opening/ending/score
In most cases every anime dub here is released on home video with it's Japanese score because there was never a separate alternate score made for it. Technically speaking I guess the Italian score would be its original score since it came out first in Italy.