Sitcom television has taken such a drastic turn through the years. Crassness and sexual innuendo are common place on many shows these days--it's come to be expected. But sitcoms that aired decades ago always managed to pull off an hysterical moment without resorting know.

The Mary Tyler Moore Show was a perfect example of comedy without the nastiness. And recently, audiences that remember such a beloved show got a surprise when it was announced that the ladies of Mary Tyler Moore would be working together on Betty White's 'Hot in Cleveland.'

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