Editing the style and professionalism of your edit will be dependent upon what film you are making and for which audience.
Presentations - cut short films to illustrate your talk. Alternatively cut the audio from your him and set it to photographic slides.
Other places for your film if no one seems to want it. Don’t give up hope. Consider Video libraries (Ike photo libraries), Video archive libraries, news organisations (if news angle). campaigning organisations.
Whoever owns the rights has the power… and rights means money. Trust no one! Especially media professionals! Read contracts thoroughly and take legal advice.
Research the commissioning editors you are approaching, what they have commissioned in the past and ‘strands' they are currently commissioning.
Strongly consider working alongside an established production company to pitch ideas to broadcasters. Submit 1-to-2 page written pitch with illustrative photographs including:
Notoriously difficult as above with either a) short promo (to get money for post-production or b) complete edited film. Consult legal advice on all contracts.