We’re talking “title of show,” the intrepid, pint-size comic entertainment by Jeff Bowen and Hunter Bell. The piece had an extended run off-Broadway in 2006 at the Vineyard Theatre and since then has been trying to make its way to the Big Time. Now it will. The four-actor musical, again directed by Michael Berresse, opens July 17 at the Lyceum Theatre with preview performances beginning July 5.