As London's live music scene keeps on getting better, so too does our underground comedy circuit grow more diverse — and cheaper to check out. New for 2008, the Porthole Comedy Club at Kilburn's Good Ship provides four stand-up maters for just £4. Tonight, San Francisco's gay-stereotype-basher and Perrier Award-winner Scott Capurro joins Sheffield-born Postman Pat lookalike Tom Wrigglesworth to convert the typically laughter-free, work-worry zone that is a Monday night into a time of mirth and heckles (if you're one of the brave).