Were the Borg always supposed to look like how they did in First Contact? Or in the storyline of the Star Trek universe did the Borg decide to change their outer appearance from the BOBW episode into what we saw in First Contact? I've always wondered this, because in the beginning of First Contact when it shows the flashback from a "deleted" scene (it's not really a deleted scene, but you know what I mean) from the BOBW episode, it shows Picard in his uniform from that episode. If the Borg were always supposed to look like how they did in First Contact in all of the TNG episodes they were in and were constrained by a lower budget of a TV show, then why did they decide to have a storyline reason in Enterprise for why the Klingons changed their appearance? I guess what I'm saying is that if the Klingons got a storyline reason for their changing appearance, the Borg should have gotten one too. It has always bothered me that we might have to accept that the Borg were always supposed to look like how they did in First Contact with no explanation at all except because TNG didn't have a big budget.