Nielsen released a study last Monday (October 26) which found that children ages 2 to 5 watch more than 32 hours of TV per week. Kids ages 6 to 11 only watch about 28 hours per week (but they are in school more which accounts for the reduced TV watching).
When you consider that most adults work a 40 hour week, I find those numbers to be astonishing. Apparently this is the most television viewing for 2 to 11 year-olds since 1995.
Also according to this study, kids aged 6 to 11 also watch more commercials than older kids or adults. Thanks to the wonders of DVR, they also watch the same programs over and over again.
What about video games? The same study says that children ages 6 to 11 spend nearly 2.5 hours per week playing video games on a TV.