And to those not older enough ;), I remember that on Thursday nights (there was a famous quiz show on television) my grandmother invited the neighbours (which had not a TV set at all) to come and watch it together (it was a house with four apartments).
And then I remember the surprise when the first colour TV sets came into use (at first they were only in bars and similar), the first main event were the Olympic Games of 1976 (Montreal) all the people crowded there to see the grass (more or less) green, the water blue ...