So what is the probability that the meteor hits and the asteroid passes Earth on the same day when someone could record it on video?

CNN: A meteor and asteroid: 1 in 100 million odds

Any NEO that is going to hit the Earth will swing near our planet many times before it hits, and it should be discovered by comprehensive sky searches like Spaceguard.

FORBES: We Probably Wouldn't Even See A Doomsday Asteroid Until It Was Too Late