These are assumed dates in some of these episodes would likely take place.
Horror Stories & Halloween Scares - reason being, if this took place in 2014, they would be seniors and likely not be going to Jimmy's annual party
Musicals & Moving On (Most of the episode)
Musicals & Moving On (Last Scene - Psych Proposal)
Duets & Destiny (First minute and a half)
Duets & Destiny (Most of the episode)
Duets & Destiny (Last scene)