Sadly, there was no actual putting Smarties tubes on cat's legs (althoug I remain hopeful that people watching the show tried it at home); QI is a British program which is sort of like the ljdq, where a panel of mostly stand-up comics (I think) try to answer ridiculous questions (for example, 'what is the link between Adam's bellybutton and the Archbishop of Canterbury's left ear?') with often hilarious results.

Sometimes the panelists are also given things to do over the course of the episode, and in one episode they were all given small chalkboards with a bunch of magnet letters on them, and told to make words out of them. At the end of the episode, one of the panelists had used all of his letters to come up with what you see in my icon.

It's a hilarious program, and I'd definitely recommend checking it out if you can. There are some clips up on YouTube, and I could provide you with info on obtaining episodes, if you're interested.