I appeared on our local BBC news programme Look North. I was filmed demonstrating an electronic voting system (instead of putting a cross on the ballot paper, you would simply press a button on a screen). Dave Guest, the presenter was lovely; however, when I watched the clip later on TV, and Dave was speaking to camera, you could clearly still hear me in the background explaining the process to a voter - honestly, I could whisper over 3 fields! Sadly, electronic voting never caught on, no idea why.
I have also appeared on screen when I was a spectator at an England -v-Italy 6 Nations Rugby match. It was held in Rome, and I was sat next to some famous Italian rugby player (I had no idea) and the cameraman focused on him and his family for ages! I saw myself on the stadium screen and tried to look very interested in the game (which I wasn't ?).