That's not really being "beholden", so to speak, is it? It's just WB covering its bases and remembering who they dealt with in the past. Nobody was putting a gun to those stations' heads (figuratively speaking of course).
Re: Perfect Match: I can tell you with a fair degree of certainty WCBS didn't pick it up, since I'm almost positive WOR (pre-extra W) had nabbed it. Don't know what would've replaced Catch Phrase though.
Channel 9 sure did have a lotta game shows in their lineup that season- the last licks of Joker and Tic Tac Dough, Perfect Match, Dating Game, Newlywed Game (I think), Let's Make a Deal, best of Feud, $1,000,000 COAL, and the original $100,000 Pyramid.