Dinner at George's - S1.E5

Winston tells Fred that Evelyn's favorite restaraunt is a fancy one, so Fred decides to take her to that place. Thinking that Fred cannot handle the bill, Evelyn sneaks off to ""powder her nose"" so that she can pay the difference over the $34 Fred brought with him. Fred catches on and then offended, he leaves her at the restaraunt. He goes home to get money and comes across some silver dollars. He then gives them to Evelyn to pay her back for the bill and when she cashes them, it turns out that those silver dollars were old, rare, and worth $1,500. She gives him the money and out of that, he gives her the $100 she paid for dinner.