For the most part, most everyone you see on-screen on a newscast has been vaccinated because they didn't want to broadcast from home or be distant on the set any longer, and already had their celebrations of such in April and May; I know of nobody in eastern Wisconsin who has left their station outside of the regular old reasons and openly shared when their teams were all past the inoculation period.
The hold-outs seem to be that side of broadcasting that think of it as a 'calling to God' and that they can somehow convert people reporting on a five-car accident or consumer reporting (the type that seem to pack a lot of 'news/talk' conservative radio station newsrooms), and think they're just that 'one big story' away from getting on Fox News or will personally oust Raymond Arroyo or Pat Robertson. Outside a few true exceptions where they cannot actually get the shot due to medical reasons, and along with the general public, they are few and far between, but can get the news on their side since they know the emotional tricks of doing so.