I've emailed Comedy Central via the email address listed on there website.
Best of luck with that, I emailed them months ago asking why the hell the SD channel isn't 16:9 and you have to squint to see 30 Rock and the umpteen other widescreen shows, and I never got a response. In addition, someone I know said they Tweeted them to ask why 30 Rock had abruptly finished despite still being billed in all the TV guides, CC Tweeted to say it was on "its summer break", they Tweeted back to ask, if that was the case, why a) there were still several episodes of this series left to show, and b) why it was still being billed in all the TV guides. And CC Tweeted to say it was on "its summer break".
Comedy Central is an utterly useless channel, broadcasting in 4:3 is absolutely ridiculous. It's a shambles. And it's not like some piddly channel, it's Comedy Central!