Whats the most dominant team time trial performance in professional cycling history, taking into account factors such as the margin of victory, course difficulty, and the caliber of competition? Should we consider the 2005 Tour de France TTT, where Discovery Channel won by a staggering 2 minutes and 22 seconds, as one of the greatest team time trials of all time, or does another performance surpass it in terms of sheer dominance and skill? How do we evaluate the significance of team time trials in the context of overall Tour de France victories, and what role do they play in shaping the outcome of the general classification?