What date and time did this "book signing" take place?

I'm backdating and sliding this in behind the more recent posts.

Here is Debbi explaining that she's in line to get Scott and Tessa's new book. Signed. That's how she says it. Each word its own sentence because, you know, we need help. Words is hard. So, yet another screen cap from Debbi's infamous tete a tete with Scott and Tessa at the Hershey Centre during Western Challenge, Dec. 2010.



Michael Scott of The Office waiting to get Scott and Tessa's new book. Signed.

So Debbi stands in line along with the camera that lives with her, because you know, she's not there for a pre-arranged interview. She's in line and the camera just happened to be there when it was her turn to approach the table. After telling Scott and Tessa what to write when they sign it, she wields the large microphone she has with her at all times and begins to chat with them.

The book signing above, we're told, is the concourse of the Hershey Center, and while in line Debbi shares that a big event is happening - almost as big as what's happening on ice in the arena. Scott and Tessa are signing. Very exciting says Debbi.

Yep. You can see the fans tripping over themselves up above - one in volunteer blue, another dude carrying volunteer blue, and a lady in the back looking at something she's holding. And Debs. All that's missing is a scrum. Falling down on the job, Barb?

A bunch of fans attended Western Challenge - one or two saw Scott in the corridor. What I want to know is when did this signing happen. Fans in attendance - those who reported from the arena - all seem to have missed it. Between what events? What day? What time of day? Anybody there for it?