Yeah I agree that 40 hours seems to be a good number for a week's consumption. On weekdays, the max I can think it taking is 2 hours for commuting, and 3-5 hours of TV. I am nowhere near this number myself, but I can see it being the norm for a lot of people. That's about 7 hours a day for 5 days. Weekends are completely random for me. On most summer weekends I didn't think I consume anything at all, but I can see how it could be quite high for some people. Overall, I think a hard cap of 40 hours is probably sufficient for most people.

I am sure that the MPAA would try and argue that internet access should be included in this, which is probably where the whole problem starts.