Find the best Mark Simmons - Quip Off The Mark comedy tickets at Leicester Square Theatre, Inner London. As Seen on Mock The Week, BT Sport and ITV, ‘Master of one-liners' MARK SIMMONS brings his brand-new show on the road. This isn't your average one-liner show as there is the running theme throughout. This year Mark's parents have sold the house he grew up in and has to collect his box of stuff from the loft. Come discover what's in the box in this top-level one-liner show structured in a way you've never seen before.