Most ships I’ve been on only allowed the mess room TV to be on the Safety Channel, showing HSE stuff, rig business, crew photos, etc. During meal times that lead to actual conversation. I found that preferable.
Having Direct TV meant you could watch whatever news or non-news you wanted in the comfort of your own cabin.
In Canada you count on the lounge TV almost always playing hockey, which could lead to political-worthy disagreements, but much more good natured.