Neil Mullarkey, star of Whose Line Is It Anyway?, Austin Powers, and the Comedy Store Players, is returning with a new comedy improv show - with a difference.

140 Characters, as its name suggests, will be the first ever improv event where the topics will be suggested by users on Twitter.

The show will be broadcast live at 7pm on Monday 7th November at 140characters.tv, as part of Internet Week Europe

Visitors to the official website can submit sound effects and photos that might be used during the performance. The organisers are also inviting participation through their @140characterstv Twitter account.

There'll also be a live audience on the night - but in keeping with the theme, only 140 people will be allowed in.

Tickets are available now