Sure- but 'broadcast on TV' means a lot of different things these days. Has a primetime show on ABC or FOX been shot on a 150- probably not. But has CNN news, documentaries, music videos, shorts and commercials been shot on 150 and broadcast at least at the local cable level- sure. Now more than ever- 'broadcast quality' is an elastic term that encompasses what the content is and who's broadcasting it. In short, yes you can create high quality footage with the 150, whether it can be broadcast or not is entirely dependent on other factors though.
I have the same question, and will try to be more specific.
Let's consider, say, PBS/POV. If all other aspects of a film are high quality and up to their standards (cinematography, editing, content, lighting, color correx, sound, etc), would the fact that it was shot on the HMC150 be a fatal stumbling block to their accepting it? I guess it would be the 4-2-0 color space vs the 4-2-2 color space of a camera with P2 media, like the hvx200 or hpx170.
Does that help? It's important for me to know, because I'm about to embark on a project that, eventually, if all else went well, might be pitched to national venues along the lines of PBS and HBO documentaries.