Metaphorically, if our afternoon Comedy Club 4 Kids shows are Doctor Who, then this is the Torchwood spin-off. Darker. Grittier. Based on a time rift. Our 'really funny' ***** (Fest) family shows are open to everyone aged 6+, and the rudest word you'll hear there is bum. Not tonight. This one-off gig is grown-ups only. Adults will be our giddy audience of children, watching the circuit's finest sketch acts and stand-ups doing their specially honed kids sets, and telling tales of times when performing for the under-10s has gone, ahem, somewhat awry.