The Platypus Playpen
Time Out says
Stand-ups test new material here at the Platypus Playpen. Entry's free. Totally free. No donation bucket, no fee to guarantee entry – just turn up and it's free!
Garrett Millerick, Chris Betts, Abigoliah Schamaun and Pierre Novellie rotate as resident hosts, introducing lots of pro comics. Check 'dates and times' for the full line-ups.