The crew of Los Angeles County Fire Department Station 51 and their colleagues at Rampart Hospital deal with many different types of emergency.
The fire station on the Universal Studios Lot was named Station 51 after the fictional Station in this show.
The actual fire station featuring in the show was Fire Station 127 on E.223rd Street in Carson, California. The station has now been named "The Robert A. Cinader Memorial" station in memory of the executive producer of the show. The show has been credited with raising awareness of techniques for dealing with emergency situations, and indirectly has saved many lives.
Engine 51 used in the show is now in service at Yosemite National Park in California.
Episodes featuring the backlot
(click on the episode title for stills and more)
"Botulism" - Season 1, Episode 3 (29 Jan 1972) Front Lot & Backlot
"Brushfire" - Season 1, Episode 5 (19 Feb 1972) Psycho House
"Boot" - Season 2, Episode 19 (3 March 1973) Apartments
Thanks to universalstonecutter for episode research