Talk about serendipity! I was just watching the Diana Millay ep on The Man From U.N.C.L.E. and a promo came on for "The lost episodes of Bonanza," so I decided to check the TV Guide Web site to see what's upcoming, and lo and behold I discovered this listing for later today:
Bonanza
One Ace Too Many 2:00 PM on MeTV, 1 hr 1972 TV-PG
Lorne Greene as Ben Cartwright and his double, a con man with an outlandish ploy to liquidate the Ponderosa. Jordan: Greg Mullavey. Ellen: Kate Jackson. Sheriff Coffee: Ray Teal. Dr. Martin: Harry Holcombe. Williams: William Mims. Hoss: Dan Blocker.
I remember watching that ep back in '72. Haven't seen it since.