Fifty years ago this year the Beatles came to America and nothing was ever the same. Of course, for those of us who came of age in the 60s nothing was ever the same. Kennedy, MLK, Vietnam, the moon, Haight-Ashbury, flower power, peace, draft lotteries, Kent State. If you weren’t there you really don’t know what all that means and if you were there then you do. You can’t explain it although CNN is trying hard to do so in their latest new series THE SIXTIES. So those of us who remember watching the Beatles on the Ed Sullivan show in black and white or maybe seeing them on tour when they visited Cow Palace in San Francisco will have a faint smile on their face as they visit Del Mar because this year’s San Diego County Fair has the “Fab Four” as its theme.