Word up: Britney gave everyone a nice shock by turning up on time, at 7.30am, to the set of How I Met Your Mother - a role which she apparently hunted out. Creator Craig Thomas said Britney's people ended up coming to CBS and expressing interest in our show, and we were thrilled. 'Britney Spears watches our show!'" Of his experience working with her, the perpetually thrilled Craig said: "She seemed to have a great time, and we had a great time working with her. It was just like really a normal table read." Hmmm, not so normal, according to Dr. Doogie Howser. Neil Patrick Harris (AKA Dr. Doogie), said of the same table read: "We did the run through on Tuesday, she seemed a little nervous, she wore the big sunglasses the whole time. I think that's a bit of a security blanket. But she seems very professional." Or robotic, even? Thankfully robots are good at remembering stuff. Her other co-star, Josh Radner, said: "It pains me to report that on the first day of the shoot, Britney knew her lines better than I knew mine." If you lived in America, you could see Britney on CBS playing "a dermatologist's receptionist who falls for one of the show's main characters" on the 24th of this month.