Here n Australia, our equivalent of the FAA (CASA) specifically defines "model aircraft" as being over 100grams, with anything lighter than that being classified as a "toy".

It's quite practical these days to build a sub-100g radio controlled plane with a video camera and transmitter on board. This is just using art-store foam and inexpensive ordered-direct-from-china electronics. Fying a "broadcast quality" camera as under 100g is out of my level of expertise, but 720p video is quite easy and inexpensive these days at that scale...