Having never seen this show in hi-def before I was unsure whether to get this set on DVD or Blu-ray, because I figured that it didn't really make any difference. How wrong was I?!
I got the Bluray set and I was amazed at the level of detail that the show creators had put into it. You can see all the minor nicks and scratches in the Bot's paint, they even have that metallic "sparkle" that real metallic paint has!
I was also totally unaware that the character Airachnid actually has compound eyes like an insect!
If you have no other choice get this set on DVD; but if you can, DEFINITELY get it on Blu-ray! Hi-def is how this show was produced and that is how it is meant to be seen.
Either way just get it!
Also the comic that is included with the Blu-ray set (not with the DVD) is pretty cool. It's a pocket sized trade paperback of a miniseries put out by IDW a few years ago chronicling how Arcee and Cliffjumper got to Earth, and the first few days they spent here.
It's really worth a read as it gives Cliffjumper some decent characterization that he doesn't get in the show. I won't spoil it here, but suffice it to say, if you've already seen the show you already know why, and if you haven't you'll understand what I mean VERY quickly!