TV Load => Remove Image

Hi, I managed to create a TV that loads an image into my pages and it's working fine. The only problem is that, once the image is loaded, there's no way to remove it without loading a new one. Is it the way it is supposed to be? I could create a transparent GIF but it doesn't seem that professional to me ^___^
Am I missing something in the TV settings?

Any help will be highly appreciated
Thx

Alberto