Soon America is going to be confronted with the peculiar talent of Rick Glassman, comedian and accomplished green screen thespian, when he joins three other comedians on an NBC sitcom called “Undateable.” The show debuts in April. In the interim, connosuiers of comic genius can experience him and his cohorts — Chris D’elia, Brent Morin, and the sensational Ron Funches — in person. They’ll be touring most of the major markets to build interest in their TV show. But if Glassman is involved you can expect meta-comedy of Andy Kaufmann-esque imagination. Some people find that kind of thing funny.