I was just thinking while Traveling Matt is exploring Outer Space knowing nothing about the culture of the Silly Creatures, how would he know how to purchase a postcard without money and same goes with mailing it out. Also how does he know Doc's address? I'm watching my boxset of the first season know and right after watching the first episode, it got me thinking. lol Perhaps it's one of the mysteries of Fraggle Rock like The Gorgs have no knowledge that their trash heap is a genius of wisdom. I love her quote "I'm Orange Peels, I'm Coffee Grounds, I'm Wisdom." I wish that was a t-shirt.