With Louis Armstrong's "What a Wonderful World" as the title music, the episodes were narrated by John Peel and later by Arthur Smith in sardonic tones. Its appeal was due to a disgust factor and the eccentric but often lucid characters, most famously Edmund Trebus, encountered either hoarding rubbish or keeping huge numbers of animals. The original series was set in Haringey; subsequent series have been set in Bristol, Salford, Sheffield, Tower Hamlets, New York and Edinburgh.