I was always fond of Gordon Hathaway and "Hi ho, Steverino!" I think there was a gentleness of much of that era's humor that doesn't exist today. For example, I saw Ernie Kovac's name in the paper this morning. Kovacs' humor was nothing like Steve Allen's, but it was gentle nevertheless.
I suspect, and you may disagree, that the main influence on comedy for the past thirty years has been Lenny Bruce, and that is why we are not seeing shows that try to be funny without pushing the envelope.