Just a clarification again. Remastering is not the creation of new special effects. To remaster is to create a new master print. I could take a crummy 16mm print and transfer it over to a DVD and use that as my main srouce and it's been remastered. More accurately, the new prints have been restored (cleaned up and color corrected) and enhanced (with new CGI effects). I know you guys don't care, but there ya go anyway.
I know the very idea is sacreligious to some, but my main beef with Balance of Terror is that they didn't correct the original mistake - that throughout the episode when Kirk orders phasers to be fired we are shown a SFX shot of the Enterprise firing photon torpedoes, complete with the torpedo sound effect.
To be fair, the torpedo sound effect was only added when they released the DVDs. Previously, Balance of Terror had the exterior shots fired without sound effects, just music.
Annnnnyway, my favorite episode with CGI enhancement is "Tomorrow is Yesterday." The "Enterprise in the atmosphere" and "fighter jet" shots were amazing. And they finally were able to make the breakaway sequence make sense. Before, all they could manage were some new shots of the big model being buffeted about, mixed with stock footage. No shots of the sun or any of the other planets in our system. The new sequence is brilliant and the scenes of the Enterprise ripping out of the sun's orbit are really exciting. It's a great sequence and one that really justifies the project for me.
I also like The Doomsday Machine a lot, and the strafing Enterprise is more exciting visually than the side shot and cartoon phasers (which looked terrible even back then). I do have some minor issues with the decisions on what they showed us. The Constellation, going by the dialog, probably wouldn't have still been in tow after the commercial. Nothing concrete, mind you, but I think Kirk and the landing party would have known they were being dragged around while the Enterprise took evasive action. Spock's line of "we're more maneuverable, but it is gaining on us" indicates they are trying to evade the thing. I always assumed they left the Constellation behind and tried to lead it away. This would also explain why when the Enterprise is hit and the tractor beam is cut off, nobody on the Constellation reacts physically and it should be spinning out of control until Scotty gets the engines going later on. I know, all for a two second bit, but it bugged me when I saw it.
Also, the activation of the Constellation viewscreen takes too long. Kirk says "what the devil's going on?" and when we go back to the screen, it's just then starting to tune in. Previously, it was full on, so Kirk's statement made sense. Not anymore.