There’s a telling moment in the sixth episode of Lucy Beaumont and Sam Campbell’s new podcast, when, having phoned up a bemused Ed Gamble for a wheeze, he asks them if they’ve worked out their pod’s format yet. The internet is groaning under the weight of comics just conversationally riffing on eclectic topics. But Perfect Brains is more scattergun than most, with an episode devoted to talking about random years not lasting beyond a discussion of various 2011 phenomenon, while another is given over purely to Campbell’s frivolous game-show idea.

Having originally been flung together by Taskmaster, these intimate, weekly instalments confirm that neither of the pair’s eccentricities are that much of an act. And the twisted and telepathic sibling energy they spark in each other is endearing, exemplified by Campbell coercing his colleague into breaking one of her daughter’s toys. Still, they could benefit from a grounding external voice, a regular third wheel to play off against and rein in their over-indulgence; a grown-up to scold these arrested adolescents and give them more to kick against.
By some distance, the best episode features Tim Key, Campbell’s ‘mentor’, bickering with ‘The Termite’ over their respective sucking up to a New York socialite. This is followed by Beaumont introducing the Australian to her redoubtable mother, who entertains Campbell’s cheeky line of questioning right up until the moment that she snaps back. Guests have been few and far between up to now. But each new booking or intrusive call affords Perfect Brains fresh impetus and inspiration. 
New episodes of Lucy & Sam’s Perfect Brains are available every Friday.