Holy MOTHER OF GOD
Wow, for the 18th episode, Charlie remembers a time with a woman named Jill. They planned to go and meet at the bar but when Charlie finds out: Oh crap. Jill is now Bill, he was a man stuck inside a woman's body and now he's back to his old self. So, Charlie brought him home where Evelyn formed a special relationship with Bill while Alan and Berta learned the awful truth about Jill, he's ... Bill! Voila. What a fantastic episode with some of the highest laughs in the first season of the show, non-stop entertainment from start to finish!