The Mary Tyler Moore Show was ahead of the curve on so many serious issues. For this list, well be ranking the very special episodes of this groundbreaking 70s series that featured formative plotlines about hot-button or controversial issues. Our countdown includes sexual freedom, mortality, infidelity, and more! Which TMTMS episode do YOU think tackled serious issues the best? Let us know in the comments!

Watch more great serious issue videos here:
Top 10 Darkest Sitcom Moments - https://youtu.be/MGJhtc3Wya8
Another Top 10 Darkest Sitcom Moments - https://youtu.be/eDMSOyYCqpQ
Top 10 Times Full House Tackled Serious Issues - https://youtu.be/8-HVyGaDqtY

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