Mr. Belvedere the Pittsburgh Media Group (PMG), a consortium of public officials and Western Pennsylvania media. Dungan and Stein used it for story ideas during season one after the PMG pitched several studio groups in Los Angeles in January 1985. "People were impressed... the calendar has Pittsburgh scenes for each month. The Bridge of Sighs is February. The PPG Building is March. Three Rivers Stadium gets three months." The show's theme song, "According to Our New Arrival," was performed by ragtime singer Leon Redbone. It was written by Judy Hart-Angelo and Gary Portnoy, who also co-wrote the theme songs to "Cheers" and
Daniel A. Portnoy Pennsylvania, where he collaborated with Dr. Lewis Tilney in the Biology Department and made the observation that "L. monocytogenes" spreads from one cell to another by exploiting a host cell system of actin polymerization. His lab also defined the role of the listerial hemolysin in mediating dissolution of phagosomes. In collaboration with Dr. Philip Youngman, he showed that expression of the "L. monocytogenes" hemolysin by "Bacillus subtilis" led to its growth inside of host cells. Dr. Portnoy collaborated with Dr. Yvonne Paterson, who also arrived at Penn in 1988, on the use of "L. monocytogenes" as a recombinant vector-based vaccine