Eight Is Enough (1977)

Season 4: Episode 6

Joannie gets a job in the research department of a TV station. Mary finds a hidden home pregnancy test and tries to find the owner. Joannie ""scoops"" Tom on a story on a porno theater for her new job at a television station. The problem is that the theater is owned by a public corporation and Tom is a stockholder. Tom is upset that a porno theater has opened in his neighborhood but then discovers that he is part owner of it.