Episode numbers indicate the quote used when the episode was shown for the first time; in some cases, the one used in Canada is listed where it was "original" and the USA one was repeated

Note that all quotes were originally in all capital letters, but any punctuation appears as it did in the original quotes

Openings are listed in the order in which they were first shown

If an episode is not listed, either it did not have a blackboard quote the first time it was shown, or it used a repeated opening

"x" after an episode number indicates it took place during the episode

"*" indicates a note


Repeated openings:


Notes: