Unveiled in 2011, Blackpool's Comedy Carpet has fast become one of the resort's favourite free things to see. Central Pier to the left, North Pier to the right and top and tailed by the Tower and Spanish Steps, the Carpet has rapidly established itself as a meeting and eating hub for many visitors to Blackpool.   It is of little surprise, given that you can choose to take a leisurely stroll through the scripts, eat a sarnie with a side-order of shenanigans or say to your nearest and dearest "I'll meet you at the Doddy section at half…