10: Series 5, Axe Awe getting flipped out of the arena from about halfway in.
9: Series 2, Plunderbird IIs entire semi final gauntlet run, from the theme tune to getting pushed back just about further than anyone else.
8: Series 3, Chaos 2 being the first to flip somebody out of the arena
7: Series 6, 13 Black in the losers melee
6: Series 5, Bigger Brother being completely trashed, and then pitting Hypnodisc
5: Series 2, Panic Attack ramming Cassius down the pit after being the underdogs for just about the entire competition
4: Series 3, T II managing to drive into the pit during its fight with Vector
3: Series 7, Gravity against Dantomk-oh wait, its over already...
2: The entire Series 4 Celebrity Special :P
1: Series 3, Hypnodisc against Robogeddon...for me it was the first time Id really seen a robot get really trashed, as opposed to just a little cut or hole.