I did this piece for Swedish state broadcaster Sveriges Radio. The process of getting it made was, to be frank, deeply annoying. We spoke about it for months, but neither a decision nor a budget was forthcoming.
In the end I did it on spec and offered it to them, only for them to make a low-ball offer that was deeply insulting. We got their in the end, but the process highlighted the difficulties of working with big organisations who simply do not understand the realities of freelancing.