‘Oh, Hello’ review: Nick Kroll, John Mulaney show a must-see for cranky New Yorkers

Nick Kroll and John Mulaney’s eccentric and enjoyable two-man comedy routine “Oh, Hello,” which gained popularity on Comedy Central’s “Kroll Show” and is now playing a limited run on Broadway, is intended for aging, oddball, scruffy, cranky, culturally (if not authentically) Jewish New Yorkers — and anyone else who identifies with or appreciates the same demographic.