Ruff has been so busy trying to find his long-lost parents. Ruff has been so busy trying to find his long-lost parents, he's forgotten to choose his Season 5 FETCHers!

Part-reality show, part-animated, part-educational, part-spoof — “Fetch! with Ruff Ruffman” blasted onto PBS stations last spring with a cartoon dog as a host, a gaggle of excitable kids — “fetchers” ...