Yes, at least twice. Once back in the 70's when I was in a walk-a-thon, and once back in 2000 when I had an eye exam. They were doing an article about the eye doctor and asked if I would allow them to film while she did my exam.
I have and you might have seen it because it was at the Ambassador bridge. The segment was about a protest on both sides of the bridge and it was back when Nixon wanted to test a nuclear bomb on Amchitka Island. I was the guy wearing a t-shirt with a cartoon photo of Nixon sitting on a toilet saying - Amchitka I Don't Give A Dame (or something like that). Cheers!