Nobody gets in to see the Wizard. Not nobody, not nohow! Not unless you have cable – in which case, you can tune to TNT tonight and see, almost casually, the annual movie-on-TV event that was so significant, and so eagerly awaited, when I was a child that I wrote about it in advance, in a countdown, in my diary at age 7. And today, by the way, is the final day of my Personal History of Television exhibition at the Apexart gallery in New York, where that very diary is on display under glass