Newhart had his first sitcom success as Chicago psychologist Bob Hartley in this ensemble gem of the 1970s. Complicating life for the serene, stammering doc and his wise wife, Emily, were their neighbor, Howard, a flighty navigator; and Bob's coworkers, dentist Jerry and flippant receptionist Carol. The humor was gentle, sophisticated and, at times, wonderfully surreal. `We were selling class and charm and wit,' series cocreator David Davis said. And for six years, viewers were happily buying.