“Casting Couch” question

Watching “Requiem for a Falling Star” and came across a part where Colombo is talking to Mr. Parks the reporter, and in the conversation by the file cabinet,

Mr. Park says “learn the truth about Hollywood’s most idyllic marriage, about Nora’s secret fights with her husband, about Al Cumberland’s famous casting couch.”

Columbo: “oh, casting couch, I’ve heard of that term.”

Is he referencing the same term casting couch that I’m thinking of?