I guess some days I could manage 8 hours, but not sure I'd want to, I'd get bored really quick if I was doing it 8hrs a day every day. I think the longest I've stayed on cam, without signing out is 4 hours, but that's unusual for me. When I am broadcasting, I like to give myself a break hourly, just to get away from the computer screen, stretch my legs, get a drink, loo break etc. I imagine an 8hr day every day would quickly lead to model burn out!