Family Matters: Season 3, Episode 1
Boom (20 Sep. 1991)
Urkel befriends Lowell, an orangutan who has been abused through a series of laboratory experiments. At the precinct, Carl is exercising on a treadmill when he discovers it has been booby-trapped by a revenge seeker; the bomb hidden inside will go off should he step off the treadmill. He must rely on Lt. Murtaugh - and a little bit of luck - to disconnect the bomb's wiring before it explodes.