DS9 s4e23 "To the Death"

In a plot-packed thrill ride, the crew team up with the Gom Jabbars (or so Jay Leno thinks), Jeffrey Combs continues his unbroken Trek character home run streak, and Matt and Andy pause from asking, "Why isn't Odo using his T-1000 hands?" to ask, "Why did they wait so long to bring Odo in to use his T-1000 hands?"

[Episode discussion begins around 1:25]