The episode where Lou Grant dates an older woman.

In the 1970s, tv shows and movies had a much more realistic and honest look at realities. Political correctness has created sensitivity to the point that mindlessness and fakeness reign. The Mary Tyler Show was definitely a politically liberal show, but it did not prettify reality. Lou Grant is an old fashion boss who can seem very hard and scary to all in the office. When he is accidentally hooked up on a date with a woman thirty years older than him, at first he is so embarrassed and shuns her. After meeting his ex wife at an event, he suddenly sees how irrationally he behaved. He introduces the elderly woman as his date and even brags about how she once met a famous poet of years past. The episode showed how elderly people can be pushed away as vital human beings and how irrational that is. However, it does it in a way that most of the audience will laugh through it all and come away with an appreciation of how stigmas hurt others. I wished they had more comedies like this nowadays.