Question on OPA Study: Online No. 2 At-Home Medium?

I’m wondering what you’ve heard or think of this study.  (See Ad Age Article)

I have a relationship with Pam Horan and OPA(they are doing a panel next week in LA –‘eyes on the internet’ ), and was going to poke around a bit for the data.

According to Pam:

“About 20% of all Web usage occurs while viewing TV or immediately before or after. In fact, the Web ranks as the top at-work medium (followed by radio) and the second greatest reach vehicle at home, after TV. Even then, the link between TV and the Web is striking: About 20% of all Web usage occurs while viewing TV or immediately before or after.”

Thoughts, anyone?