Yesterday LAist was invited to watch a taping of The Florence Henderson Show on the AARP's new network, Retirement Living TV. It was a bonus that they shoot it on the same soundstage where they filmed I Love Lucy. Blogger Donna Lethal's presence was required for her sense of irony, incredible database of old Hollywood trivia, ability to spot someone famous at 20 yards, and long red hair that men find irresistible. We watched......