MSP: Loose Meat Sandwich
Yeah, that show made me want to try loose meat sandwiches, too. I was mildly disappointed when I finally went to a Maid Rite in Des Moines, but it wasn't bad.
But it's an Iowa thing - I don't think there are any Maid Rites in the Twin Cities.
This post mentions The Barn in Brainerd (closer than Iowa):