You may have seen comedian Jon earlier in the night as team captain on 8 Out of 10 Cats, but it's all about him in this show as the comedian must learn what everybody tries (and sometimes fails) to learn at some stage - how to be a grown up. In the first of a three part series, Jon and his fellow comedian Matt attempt to get to grips with this commitment and marriage lark by meeting those with a variety of different views on the topic, from those married for 54 years to those who contest any kind of monogamy, such as swingers. Don't know if the lads will be leaving their keys in any bowls though...