A subplot involves Gloria hiring a Spanish tutor for Manny. Manny has demonstrated understanding Spanish in earlier seasons, but here, he suddenly lacks knowledge of even basic vocabulary.
In season 1 Gloria calls Manny Manuel Roberto but in season 6 she says to Manny "Your name is Manuel Alberto Javier Alejandro Delgado". However, Manny's reaction to "Manuel Alberto Javier Alejandro Delgado" is confusion and him noting that he's pretty sure that Gloria's saying a name that he's never heard before.