Which episode of the Simpsons am I thinking of? It's from the 90's I think.
A Russian dignitary at the Olympics committee stands up and says something like "Come to Russia where 1 dollar is worth 5 roubles. Pager beeps. He starts reading the messages as it beeps sounding increasingly panicked 12 roubles. 50 roubles. 1000 ROUBLES!? I must go!"