Drivers want to fly upwards in a straight line - not in a curve. Curving upwards indicates there was a lot of spin which causes loft which causes the ball to not go as far. 3Ws are ok to do this if you want to land the ball on teh green cause you would want it to stop shorter, but drivers want to have the least amound of spin possible to get the maximum distance.

What you probably see on TV is distorted to some degree, so don't rely on that alone. Go to a tourny or see a pro practice in person to know exactly what you are seeing.

If you are seeing the ball curve upwards with a driver, my bet is that you are hitting the ball with decending angle of decent. This is caused by your hands being too active at the ball. Use more of your hips and shoulder rotation to get the power and leave the hands to simply release to the ball to get the club square, not forcing them to the ball for power. Do this easy hand release will put less angle on the ball at impact and get less spin on the ball. Your flight will be a little lower, but overall, you will get better distance from the ball landing and running farther.