One in five couples got frustrated on a daily basis, and nearly half moved to another room to watch the TV in peace.
Couples fight over the telly on average about four times a week.
The volume levels, deciding what to watch, asking too many questions about the programme when it's on, and talking over a show were listed as the main bugbears.
The research, by streaming service Roku, also found getting distracted by your phone or falling asleep in the middle of a show also caused arguments.
The Irish Sun reports one in five couples got frustrated on a daily basis, and as a result nearly half moved to another room to watch the TV in peace.