[chrisdafur]

The opening titles and break captions in both of those episodes look fine, so it suggests that it's something that was done during the production of those two episodes, rather than anything to do with degredation of those tapes or something set up wrong during a more recent transfer.

I did go back and have a quick look at the credits, both episodes seem to be directed by the same guy. I guess the might have been trialing a new technique. Some of the filming angles did look different to usual too.