Cheers S01E10 - Endless Slumper

Sam gets a phone call from an old baseball friend, Rick Walker, who has been having a lousy season. He wonders what he should do, and Sam tries to help but can't think of what to do. He suggests getting a lucky charm, and Coach says that Sam used to have one. It turns out Sam still does - a bottle cap, which he says he found. Sam lends Rick the cap and Rick's performance improves greatly - whilst Sam goes through a period of very bad luck. When Sam find out that Rick lost the bottle cap, he gets depressed, as Diane finds out that it was in fact the cap off the last bottle of beer Sam ever drank.