We offer live betting only during timeouts, usually.
There is a bet type under Football on the main bet page which designates what will be offered for "Live NFL" or "Live NCAA" betting. Live betting refers to what is sometimes called "in-progress" betting or in Asia "Rolling ball".
Sometimes, due to field position, the dangers of a lag in TV reception, and/or a lop-sided score, we choose not to offer a price.