Although I no longer follow Dave Letterman’s doings with a religious fervor, the few minutes of any “Late Show” I’ve caught recently made clear what his current goal in life is: Get On Oprah. Or at least: Get On Oprah’s Nerves. His quest has caught on, with fans showing up outside NBC’s Today show window, Oprah’s studios, and sporting events with handmade signs reading “Oprah Call Dave!” For two months, Dave has jotted notes in his “Oprah Log”, a notebook listing each show’s lack of communication from the queen of daytime talk. Newspaper commentary has been written; some think Oprah is secretly amused, others believe she needs to loosen up and give Dave a call. Perhaps it’s just that Dave doesn’t fit into her target market. Or maybe she is holding a grudge. But it is possible that she is working the timing to maximize the exposure of the quest and its ultimate fulfillment in, I hope, a candid and revealing look at Letterman’s life in an hour long (including commercials) interview. Call Dave, Oprah! But only when you know the time is right.