Grant owned one slave in his life, William Jones, whom he set free in 1859. Julia had the use of four of her father's slaves. These slaves were all free by 1863. In 1864, the Grants hired one of those former slaves, whose name was also Julia, as a paid nurse.
The Ball State study found that the average American adult was exposed to five hours and nine minutes of live TV each day, almost 15 minutes of TV via a DVR device and 2.4 minutes of video on the computer.
Ofcom's survey of UK households found that they spent on average 4 hours watching TV each day, compared to 1.15 hours using the internet. If those numbers are accurate, they might show we're more aware of our time online than our time in front of the TV - maybe because it's time spent actively doing something.