The New York Times features a look at a weekend in Knoxville. I must hang with the wrong crowd, or at least with the people writer Allison Glock knows. I have never heard Knoxville referred to as the "the couch."
KnoxVegas, K-Town, Knoxpatch, yes. But "the couch," no, never.
The accompanying slide show to the article includes a WDVX Blue Plate Special show. Online Producer Talid Magdy has a weekly series of videos on those shows.
Update: KnoxvilleTalks is doing a "couch" poll. So unless you're a couch potato, head on over there.