Britney Spears by Gregg DeGuire/ Britney Spears by Gregg DeGuire/

And now, a word (or 42) from How I Met Your Mother cocreator Craig Thomas on the week's biggest TV headline, Britney Spears' upcoming visit to the CBS sitcom. "We're thrilled to have Britney Spears on the show," Thomas raves. "Britney is an exciting new talent and we can't wait for the world to meet her. Now if you'll excuse me, I have to go check out this 'Internet' thing everyone's talking about."

Before Thomas stole away to the nearest Atari 800 and dial-up modem, however, he also weighed in on the casting of Scrubs' cutie Sarah Chalke as Ted's dermy doc, Stella. "We couldn't be happier to have Sarah Chalke joining us," he says. "Not only is Sarah smart, funny and charming, but we already know she looks damn good in a labcoat." True dat!

So, what's your latest thinking? Too much ado about guest-casting? Or is the Britney-Sarah tag team just the buzz-builder the show needs to climb off the renewal bubble once and for all?

Use our Online Video Guide to meet up with some Mother clips.

" Britney Is Bonkers for How I Met Your Mother's Ted!
" Ausiello Report: HIMYM/Britney Fallout: Silverstone Out, Chalke In!
" Britney Spears Lands One Mother of a TV Show