You should judge whether o

You should judge whether or not to shoot 16:9 by your primary audience, in terms of what most likely they will be using. This is kind of a tricky one if your shooting for TV – nearly equal fractions of the population (currently) are using Standard CRTsand HDTVs. I’d pick the aspect ratio in which you feel more comfortable getting your shots better. Since it’s not in HD and the camera doesn’t shoot 16:9 natively, I’d go with 4:3.