I wouldn't want to be on TV for any reason, but if you don't mind being in the public eye, go for it. I like the idea of promoting any responsible bike-related activity.

Just a side note: I haven't been here very long, but I think it's funny how different forums have such different and even opposing views of what biking should be like. Just yesterday I was poking around in the alt bikes forum and saw a thread where everyone was complaining because Coke had made a commercial featuring tall bikes. They completely trashed the guy in the promo for 'tainting their culture'. I'm glad that commuters know how to share.