Big Bang: "The sarcasm's a little stale though"

The guys buy a box of "junk" at a yard sale and find some collectible memorabilia inside it. Most of the stuff is rather junky, but then they stumble on a Lord of the Rings ring, which they later find out is real. Each guy has an idea about what they should do with the ring or the money they would get by selling it, but they, of course, can't agree. So they have a contest to see who can hold onto the ring the longest. The next morning Leonard tells them that in the middle of the night, while they were sleeping, everyone must have dropped the ring and he found it on the floor. He tells the guys he put into motion his idea for the ring, mailing it back to the director, but in reality he kept it for himself, a fact Sheldon later figures out and he attacks Leonard for lying. This was a funny episode, as always. This is the one show that consistently makes me laugh, and I appreciate it for that.