I also love the Christmas shows, and the 1960 version on TV is my favorite. I especially love Charlie Cantor ( I think that was his name ) as the nightgown salesman ( Da loops? ). I fall over when he has to put on gloves to handle the merchandise. 'Touching these things make me a nervous wreck...especially the black ones! I find his portrayal much funnier than the actor who played it on radio ( Peter Leeds? ).
As far as the suicide jokes go, I doubt it it caused the suicide rate to increase, at a time when guns were also much easier to obtain. It was not the same crazy world we live in now.