It is mentioned in this episode that The Los Angeles Tribune has a circulation of 404,000.
In this episode we learn that The Los Angeles Tribune has been producing a paper without interruption for 64 years.
A lot of comedy is derived from the fact that Billie's father is called Paul Newman and that he seems unaware of his name's implications.
Goof: Lou refers to Carly Mitchell as a twelve-year old though it is mentioned that the studio pretends she is ten.
Art Donovan claims to have dreamed as a child to dine at Baby Duarte's Cantina, but didn't he grow up in Honolulu?
We discover that Billie is a vegetarian.
The appearance of Harold Gould (as Dr. Duncan) creates a continuity problem in the Lou Grant universe. He also plays Rhoda's father in a different spin-off of The Mary Tyler Moore Show.
Note that the Tribune newsroom has replaced all of its old typewriters with new computer monitors from this season on. No more editing with a pencil.
The character of Jack Riley appeared once before, in season one episode Hoax, but played by Eugene Roche.
Lou describes Fred as a man in his seventies. Yet, earlier Fred told him he retired at 65, three years ago. Apparently mathematics aren't Lou's strong point.
Lou finds that Billie and Animal worked on the original story of the hit-and-run accident in 1976. But Billie only started working on metro news stories in 1977.
Both Wilson and Animal are Vietnam veterans.
We learn that Art Donovan left the Tribune for a while in 1972 to work on the campaign of a female senator he met on a plane.
The character of Martha Lindstrom, the reclusive former movie star who hasn't been photographed in years, is clearly based on Greta Garbo.
In this episode we learn Lou grew up spending summers on a farm in Michigan. Among other duties, he was in charge of checking rat traps and disposing of the rats therein.
When Lou defined a student as 'a cross between O.J. Simpson and Martin Luther King', it was considered a compliment in 1978. Now it has a different meaning.
Guest star Jane Rose is perhaps best known for co-starring as Audrey Dexter on Phyllis, another Mary Tyler Moore Show spinoff.
Pay attention tothe musical coda after the scene in which Lou sees mobster Patsy Reece for the first time. You'll recognise the first notes of The Godfather theme.
In this episode Rossi mentions that his family originally comes from New Jersey, that they moved to Burbank when he was young, and that his father was a barber.
Lou sports a band-aid near his left ear. It's explained that he cut himself shaving. In the previous episode, however, he had a smaller band-aid on exactly the same spot. Were the first two episodes filmed in reversed order?