John's boxes: opening one reveals another box (in a Question Tuesday, 2017)

running joke · status: running joke (last seen 2017) · last event: callback (2017-06-27)

date	event	what	video
2017-05-23 (said on 2017-05-14, implied)	first use	Asked what's in the boxes, John claims an absolutely true story: he opened one and was stunned to find inside it another box. (joke)	Boxes, Butterflies, and Regular Aunts: Live from the Past, It's Question Tuesday 00:00:37
2017-06-27	callback	As previously noted, opening one of the boxes reveals another box, but it is not boxes all the way down: this box holds paper, 2,000 sheets. (playful) → refers to Boxes, Butterflies, and Regular Aunts: Live from the Past, It's Question Tuesday	UNBOXING 00:00:03

Dates are upload dates, which set the order. Where the speaker gives a different recording date in the video, it is added as "said on YYYY-MM-DD, implied" (derived from the date said in the video).