I can't just " sit their and do nothing". when I'm watching tv or listening to music, or what ever, my mind always has to be somewhere else (not completely unfocused,), but enough to let me focus on something else if I get bored (my attention span is very short)

I usuually say: if something doesn't grab my attention in the first 5/10 minits, it's not worth my time

but if it is good, and I like it, if I make an effert I can focus my attention on it (but it does require a real effert)

I sat through the whole downton abby movie, even I was impressed with that (even if I had candy next to me taking my attention away a bit)