Of all the stations on Chicago radio's "watch list" (if there were such a list, that is), the one in most critical condition has to be Clear Channel Radio's "Real Oldies" WRLL-AM (1690). Nothing is official, but insiders say it could be only a matter of weeks before Clear Channel bosses pull the plug on the format and a talent lineup that includes such personalities as Larry Lujack, Tommy Edwards, Scotty Brink, Tom Murphy and Ron Smith. Plagued from its inception in 2003 with a substandard signal that barely covers the metropolitan area, "Real Oldies" has languished at the bottom...