Sid Mark, who's been ring-a-ding-dinging the sounds of Frank Sinatra for 55 years, has learned that WPHT-AM will eliminate his Friday radio program. Sunday With Sinatra - Mark's five-hour marquee show (8 a.m. to 1 p.m.) - is not going anywhere, he's been told. He expects to inform his audience Sunday morning about the imminent change. WPHT (the Big Talker 1210) is retooling its lineup over New Year's, moving morning talker Michael Smerconish to 3 to 7 p.m. and eliminating the syndicated talk shows of Glenn Beck and Sean Hannity (who have not yet found new Philadelphia stations). WPHT has...