Okay... so they definitely are premiering new episodes in other countries before
they come out in the USA. PBS really dropped the ball somewhere.
I've found a few YouTube links. The video quality isn't really good, though.
Prunella and the Haunted Locker - Part 1
http://www.youtube.com/watch?v=fOzzXvcVyKE
Kung Fool - Part 1 (Sue Ellen finally appears in this one, for you Sue Ellen
fans out there)
http://www.youtube.com/watch?v=m5QVbPGFhCI
Looking for Bonnie - Part 1
http://www.youtube.com/watch?v=T-yAu7GHlzQ
Also, the episodes look to be in a 16:9 widescreen format. I'm guessing "Arthur"
has gone high-def.