Also: Jazz By Night in Media, Comic-Con and more By Denny Dyroff, Staff Writer, The Times The National Dog Show will be held at the Greater Philadelphia Expo Center in Oaks, Nov. 15 and 16. The phrase “going to the dogs” usually has a somewhat negative connotation — but not always. This weekend, there will be an event that has definitely “gone to the dogs” and that’s a good thing....