Checking the history of Irving Kupcinet's career will establish who was familiar with him.  I believe you are arguing just to be arguing.  

Washington, DC might not have been a mecca for Hollywood movies in 1963, but it was a respectable newspaper market where Irving Kupcinet would have loved to gain more readers.  But he didn't.  His column never reached that city.  All the way until he retired in 2001, very few people in the DC area gave a damn who he was or who his Hollywood friends were.  I was there.  And I can prove Kup's column never was.  If you don't want to be "little known" outside of Chicago, then you better make friends in DC.  It's the Shakespeare capital of the Western Hemisphere because of all the pressure to succeed academically and in public service, but it still has migrants from Illinois  the land of Kupcinet and his name dropping.  Do you know how many people have to work for a congressman or a senator ?  Yet these Illinois people in DC could not read Kup's column when they got homesick.  They couldn't introduce other DC people to Kup's column.  

He was little known outside Chicago, indeed.  So he had something on a network for six months on which Carolyn Jones appeared ?  That's nothing.  In the 1950s the networks were begging for commentators to go on live television, and they came and went without any impact.  Carolyn Jones needed all the exposure she could get.  Her career wasn't on the level of Audrey Hepburn's.

My addition to the article allows that Kupcinet was well - known in Chicago and Los Angeles.  Elsewhere he was a ship passing in the night. News flash: there was no Internet when Karyn Kupcinet died.

Let's see someone other than Wildhartlivie say Irving Kupcinet was well-known outside Chicago and Los Angeles.  Wildhartlivie did a great job on the man's resume, but let's be realistic about who would have given a damn about his daughter's death a month after it happened.