The great Ed Wynn appears on this Bonanza episodes a Phineas T. Klump, a lovable old eccentric who is determined to be the first man to fly. Klump hopes to achieve this goal with a bulky set of artificial feathered wings, with "true believer" Hoss Cartwright as his ground crew. But when Klump is injured in a fall, it is Hoss who dons the wings for an experimental ascent (or descent!) from a high cliff. Marlyn Mason costars as Klump's granddaughter Amanda. Written by Blair Robertson and Hazel Swanson, "Ponderosa Birdman" first aired on February 7 1965. ~ Hal Erickson, Rovi