Sometimes I watch Dawson's Creek with the closed captioning on. That particular show, more than any other I've ever seen, uses "[chuckles]" in closed captioning with reckless abandon. Usually Pacey.
There's also crappy closed captioning - the kind that looks like it was spell-checked and edited by a six year old. The news channels have this late at night, I think.
When I sat down to write this I thought I had something interesting to say but it turns out that I was wrong.