Loser's Guide to Life
I don't think listening to the radio or any of the other things they mention can properly be called a "task". The word "multitasking" always makes me think of someone who is doing several things really badly. I mean, you can't even shave and brush your teeth at the same time and I think you would be ill-advised to try it. And yet shaving and brushing your teeth are fairly undemanding tasks.
Sometimes I feel that watching TV is a waste of time, so I've tried to combine it with something a bit more productive, such as reading. And what happens? Everything gets mixed up and I lose the thread of the finely-constructed movie about some homocidal maniac that I'm watching.