Let's start with CKLW. I remember that station well, as a nighttime listener in Pittsburgh (and still occasionally DX for it, albeit for other reasons) and as a daytime listener when my family vacationed in Erie.
WTOR-770 may be among the Birach stations that actually fulfill the public interest, convenience and necessity rule, which hasn't been the case for Birach's WWCS-540 in Canonsburg, serving the Pittsburgh market in recent years with Mexican music from Michigan and now a Fox Sports Radio affiliation that some here think is Clear Channel parking the format there for future reference. (Clear Channel has denied that.)
OK, now that I am in my home market, we have WAVL-910 in Apollo, more than 25 miles away, which claims to be a Pittsburgh station but hasn't succeeded with Christian music (carried from WAY-FM after a short attempt at local programming faltered) or conservative talk (with hosts who either wouldn't make it in Pittsburgh or are being carried on other smaller talk stations in the market).
Broadcast Communications Inc. out of Greensburg has made a tradition of trying to be "Pittsburgh" with its AMs from Westmoreland County, WKHB-620, which started out as heritage station WHJB and once was a full-service station for its home county, and WKFB-770, home of "Pittsburgh oldies" deejay Frankie Day.
WKHB formerly was licensed to Greensburg, now is licensed to Irwin, tried for Brentwood (on the other side of McKeesport from Irwin, and those living in Pittsburgh would know what I'm talking about) but the FCC rejected that idea, and now has an FM translator licensed to Clairton (a Mon Valley city some 15 miles southeast of Pittsburgh) but broadcasting from near a cemetery that overlooks the Waterfront (a Pittsburgh-oriented retail complex just over the city line in the Steel Valley boroughs).
WKFB formerly was WBCW in Jeannette, still is licensed there but usually downplays the COL in its IDs (as it also downplays "Irwin," and both stations are blurted out as "KHB Pittsburgh" and "KFB Pittsburgh") and has an FM translator that is licensed to Monroeville but now is tied to the KFB tower south of Irwin and southeast of McKeesport.
Now, one could look at a map, see that all these towns are reasonably close to Pittsburgh, and dismiss my whole premise. But I offer it anyway for your discussion.