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
Mendy Portnoy guitar lessons, with Sruli taking piano, before the two switched. In 2010, he performed at the Complete Unity Concert at Heichal Shlomo alongside Aharit Hayamim, Shtar, and JudaBlue. He and Sruli participated in the music video "Waving Flags", performed by campers and volunteer staff at Camp Simcha. Mendy Portnoy was featured on composer Yossi Green's 2015 album "Pianesque". That same year, he collaborated with singer and saxophonist Daniel Zamir on "Esa Einai", an album of Shlomo Carlebach songs, and released a short online-only piano album entitled "Holy Days". He was the final keyboardist for the Jewish rock band Hamakor, performing