I am not a broadcast specialist so I couldn't tell you how their daily life looks like. However, I think it would be extremely helpful for you to reach out to a broadcast specialist and ask them directly. Platforms like LinkedIn allows users to search for specific job titles and through that, you can message someone with a broadcast journalist title (or something similar). This would also be a great way to build your network which may open some opportunities for you in the future.
Best of luck
For more info, check out: https://www.brightnetwork.co.uk/career-path-guides/journalism-publishing/a-day-in-life-journalism/