Complex sentence: Most Expensive is also the only multiple-prize game known to have been played for three of the same prize (not cars/trips)-on the April 1,2009 episode, all three prizes were Howard Miller floor clocks.
Split into simpler sentences: Most Expensive is also the only multiple-prize game known to have been played for three of the same prize (not cars/trips). On the April 1,2009 episode, all three prizes were Howard Miller floor clocks.