112608bar.jpgUnmoved by a petition signed by over 4,500 people, an Upper West Side landlord has refused to renew the lease on the 66-year-old P&G bar, whose iconic sign is familiar to many from cameos on Seinfeld (and its ideal proximity to the Beacon Theatre). So Steve Chahalis, the fourth-generation owner of the bar, located at Amsterdam Avenue and 73rd Street, has decided to relocate a few blocks away. He's putting on a brave face, and tells the Observer his new subterranean location is more than four times bigger than the original. (There's also a stage and a full kitchen.) But the Observer worries that moving the famous sign will be logistically impractical and also require approval from the landmarks commission. Also, what will neighbors like the Museum of Natural History think of all that neon?