Reineke Reitsma at Forrester ties some numbers into the activity of surfing the web and TV channels at the same time.
The proliferation of mobile and portable Internet-connected devices has made TV multitasking the norm. Forrester’s Consumer Technographics® data shows that about four out of five US online adults who own a laptop, smartphone, or tablet go online regularly while watching TV, but the intensity of interaction differs by device.
More at The Data Digest: Multitasking While Watching TV | Forrester Blogs