UPDATE 1 - July 2016: We know that the English dub for "The Blight Before Christmas" and "The Flipper" are still missing, but the Latin American Spanish dub (La mascota de la clase) has next to no clips. The only footage found so far is a clip of "The Blight Before Christmas" (lol we found a clip), an "Up next" bumper from Disney Channel, and the opening theme in Spanish. The dubbing info for the Spanish Dub is down here: http://es.doblaje.wikia.com/wiki/La_Mascota_de_la_Clase
UPDATE 2 - August 5th, 2016: As of July 8th [1], reruns of the show having been airing weekdays at 1PM on Trecevision (Canal 13) in Guatemala. It's back again as of August 9th.
UPDATE 3 - August 7th, 2016: I managed to get the full episode "The Blight Before Christmas" from "Navidad Clásica" on YouTube after it was sent to me via MEGA. The episode is now available on Dailymotion (albeit low quality and mirrored).
UPDATE 4 - September 13, 2016: As of right now, reruns have stopped airing.