I saw this in the metro newspaper today. New TV Show called "You're back in the room" has free audience tickets for tuesday 20th Jan & wednesday 21st Jan 2015. Show is hosted by Philip Schofield and doors open at 5:45pm. You can get up to 4 tickets, you just need to register online first (took me 30secs to register).
Where: The London Studios, Upper Ground, London, SE1 9LT.http://www.lostintv.com
or 020 8530 8100
There are tickets for other shows too