I have got tickets for a Radio 4 show next week (John Finnemore - very excited!) and am now wondering how early we need to join the queue for 'ticket verification'? We don't live in London so it would be pretty disastrous to not get in! Also, there is then a 90 min gap before the doors open - again, should we just wait it out or is it safe to go away and come back? The seats are not numbered...any/all advice from someone who has done this before gratefully received!