Ball's turquoise-and-silver-sequin cowgirl costume from a 1976 "Donny and Marie" episode, video interviews with childhood friends, and original Here's Lucy scripts are a few of the items on display in the Lucy-Desi Museum, which follows the lives and careers of the two comedy stars. The adjoining Desilu Playhouse centers solely on the I Love Lucy show, with a replica of the couple's TV...