Board Thread:Wiki-Related Discussion/@comment-2153169-20150529020843

It is official! It comes from Adam himself! From Season 4 DVDs, all deleted scenes are canon.

source: https://twitter.com/AdamHorowitzLA/status/604102127737176065

We even get a confirmation; only deleted scenes from S4 dvds are sure to be canon for now

source: https://twitter.com/AdamHorowitzLA/status/604104306397052929

+ Adam confirmed the deleted scene about Hook and the jello scene is also canon!

source: https://twitter.com/asinoski/status/604104827941969920

this scene: https://www.youtube.com/watch?v=HRVuPaONFTU 