Will & Grace

Rosario was a one-joke character in the first season, when Jack married her so she could stay in the country. The character became so popular, she was made a semi-regular.

Early promotional spots for the show were ambiguous about Will's homosexuality since NBC didn't know how well the gay leading character would play.

Megan Mullally originally used her normal voice in the first episode. She began using her trademark high-pitched nasal voice in the second episode.