Video Gaming vs Watching TV

So according to what I’ve read of late, video gaming can help boost concentration and get people to focus, whereas watching too much TV may cause dementia

So what if I do both at the same time?

I’d say I’ve benefited from both over the years, and at the same time I’d admit both have occasionally put me in a form of stupor where hours of my life have disappeared

Do you prefer one over the other?