Frasier (1993)

S7E7 A Tsar is Born

When a treasured family artifact is discovered to be connected to the Romanoff dynasty, Frasier and Niles excitedly speculate that they might have royal blood. Their newfound belief sends them into a whirlwind of enthusiasm as they embrace the idea of aristocratic lineage, leading to hilariously inflated expectations and elaborate daydreams about their potential noble status.