Fans in the USA have still got time to sign up to watch a FREE stream of the dual David Tennant & Billie Piper Q&A Panel live from Philadelphia.
The event takes place today from 10.30 - 11.15am ET (3.30pm BST) at Wizard World Comic Con in Philadelphia and will be the first time that David and Billie have ever appeared at an event together in the USA. The stream will be hosted by CONtv, the new digital network devoted exclusively to the fanspace.
To watch 'The Wibbley Wobbly Timey Wimey David Tennant and Billie Piper Panel' just sign up here.
David and Billie will also be taking part in joint autograph and photo opportunities today while David will be present for solo photos and autographs tomorrow.
The exclusive event is available to viewers in the USA only and will not be archived.
However - keep an eye on our news feed. We'll be posting some EXCLUSIVE video clips recorded at the Q&A panel shortly after the event which will be viewable worldwide.
Later today, fans of Arrow will be able to watch Stephen Amell's Q&A panel live on CONtv from 3.30pm ET.