WATERTOWN - Early in "According to Tip," Dick Flavin's mostly charming ramble through the life of Thomas P. "Tip" O'Neill, Tip gives us a tip that goes a long way toward explaining the show's inspiration - and its appeal.
"Some of those old-time politicians were real showmen," he says. "That's the difference between politics then and now. Back then it was show business. Now it's advertising."
Flavin, a longtime observer of the Boston political scene - and therefore of one of its grandest products, the late speaker of the US House of Representatives - clearly relishes the showmanship of the old pols, emphatically including O'Neill. So the one-man show he's crafted, which is now receiving its world premiere with a winning performance by Ken Howard at the New Repertory Theatre, makes the most of the parallels between politics and theater.