This is Robert Fuller's final appearance.
The building on fire is next to Westwood Cemetery off Glendon Avenue. You can see the sign in the episode. It is now Pierce Brothers Memorial Cemetery and has many celebrities buried there. Most notably is Marilyn Monroe, Dean Martin, Farrah Fawcett, Jack Lemmon, Natalie Wood and many more.
Officer "Vince" (Vince Howard) gets a promotion to Sergeant in this movie.
The building address is 10880 Wilshire Blvd, Los Angeles, CA.
However, the the sunken lobby where the firefighters enter is on its Glendon Avenue side.
Some of the footage is used in The Hardy Boys/Nancy Drew Mysteries (TV Series) Arson and Old Lace which aired a few months later on Apr 1, 1978.