Of course, in the total war games, rarely does the enemy just "march on" with their entire army, like the romans did. At least in MTW there's always a couple of units trying to sneak past your flanks. These units can be stopped, of course, but might slow down your little maneuver.

Anyways, in MTW, I usually used a tactic just like that (without knowing how Hannibal did at first), but remember, there was so much more to hannibals tactic than just "run around to the rear and attack them with cavalry". He let his center infantry feign retreat, drawing the romans forward, whereas the reserves went up on the sides and the cavalry on the back. Thus: Romans in a box. A box made out of mercenaries, cutting away at anything latin-looking.

Is there anyway to download all these episodes of Time Commanders or even this program legally? Because I don't have Discovery Channel. Actually, i doubt I can even get it here.