I'm not sure this is correct. I am 65 and I remember the delivery men carrying in our first black-and-white television set when I was about 5. We were one of the last families in the neighborhood to get one, so I think they had been out for awhile before that.
I also remember getting a polio shot in school when I was about 8yo, and I don't think that was the first year they were offered.
Will be interested to see if my memory is any good!
Edit: OK, I went and Googled television. Apparently my memorty is okay. The 59yo age will work for someone whose family was really late getting a television set (we were a working class family in a working class neighborhood, so we couldn't have been more than average in our timing for purchasing a tv). There were network broadcasts available coast-to-coast by about 1947, when I was a year old.