Family Matters (1989)

S4E5 Number One with a Bullet

Title: Bulletproof Bond Plot: Carl and Urkel find themselves sharing a hospital room, where Urkel's antics quickly become a nuisance for Carl. However, when a situation arises that puts Carl in jeopardy, Urkel steps up and unexpectedly becomes his hero, proving that even the most bothersome friends can come through when it matters most.