Love Letters on the Rocks

"Love Letters On the Rocks" is the twenty-first episode of The Flintstones season one. It aired on February 17, 1961 on ABC. It was written by Arthur Phillips, and produced and directed by William Hanna and Joseph Barbera, the creators of the show and the co-founders of Hanna-Barbera Productions.

Fred finds a love letter to Wilma, coming to the conclusion that she's cheating on him, so he sends out a private investigator to find out who. If only he could remember that it was his old love letter to her from when they were teens...

Characters

 * style="background-color:#clear"| Betty Rubble
 * style="background-color:#clear"| Bea Benaderet
 * style="background-color:#clear"| Wilma Flintstone
 * style="background-color:#clear"| Jean Vander Pyl
 * style="background-color:#clear"| Fred Flintstone
 * style="background-color:#clear"| Alan Reed
 * style="background-color:#clear"| Barney Rubble
 * style="background-color:#clear"| Mel Blanc
 * style="background-color:#FDB56C" colspan="2"| Dino
 * style="background-color:#d2d2ff"| Mr. Slagheap
 * style="background-color:#aaffaa"| John Stephenson
 * style="background-color:#d2d2ff"| Bartender
 * style="background-color:#aaffaa"| Mel Blanc
 * style="background-color:#d2d2ff"| Perry Gunnite
 * style="background-color:#aaffaa"| John Stephenson
 * style="background-color:#d2d2ff"| Brigette
 * style="background-color:#aaffaa"| Bea Benaderet
 * style="background-color:#d2d2ff"| Knuckles Stickazora
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#d2d2ff"| Knuckles Stickazora's henchmen
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Cab driver
 * style="background-color:#aaffaa"| Mel Blanc
 * style="background-color:#d2d2ff"| Brigette
 * style="background-color:#aaffaa"| Bea Benaderet
 * style="background-color:#d2d2ff"| Knuckles Stickazora
 * style="background-color:#aaffaa"| Unavailable
 * style="background-color:#d2d2ff"| Knuckles Stickazora's henchmen
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Cab driver
 * style="background-color:#aaffaa"| Mel Blanc
 * style="background-color:#ffff00"| N/A
 * style="background-color:#d2d2ff"| Cab driver
 * style="background-color:#aaffaa"| Mel Blanc
 * style="background-color:#aaffaa"| Mel Blanc

Locations

 * Earth
 * United States
 * Bedrock
 * Flintstone residence
 * Boulder High School (mentioned)
 * Jewelers
 * Dina's
 * Perry Gunite's office

Objects

 * Roller skates
 * Love letter
 * Fred's watch

Vehicles

 * Rubblemobile
 * Flintmobile

Filming
The cast was recorded on September 2, 1960.

Music
The music was composed by Hoyt Curtin.

Release
Dates are in order of release:


 * United States: February 17, 1961 on ABC

Behind the scenes

 * It isn't specified if Boulder High is actually in Bedrock or not (although The Flintstone Kids retconned them all living in Bedrock as kids).
 * The character of Peter Gunnite is an allusion of TV detective Peter Gunn.

Errors

 * Even though Fred is said to have gone to Boulder High in this episode, he had previously mentioned he went to Rockville Center High in "Hot Lips Hannigan."

Home availability

 * In the United States:
 * March 16, 2004: Warner Home Video releases The Flintstones: The Complete First Season on DVD.
 * October 28, 2008: Warner Home Video releases The Flintstones: The Complete Series (limited edition) on DVD.
 * November 13, 2012: Warner Home Video releases The Flintstones: The Complete Series (standard edition) on DVD.
 * May 21, 2013: Warner Home Video releases Best of Warner Bros. 25 Cartoon Collection: Hanna-Barbera on DVD.
 * May 23, 2017: Warner Home Video releases The Flintstones: The Complete First Season (Hanna-Barbera Diamond Collection edition) on DVD.
 * December 12, 2017: Warner Home Video releases Hanna-Barbera Diamond Collection 4-Pack on DVD.
 * February 13, 2018: Warner Home Video releases The Flintstones: The Complete Series (Hanna-Barbera Diamond Collection edition) on DVD.
 * October 27, 2020: Warner Home Video releases The Flintstones: The Complete Series on Blu-ray Disc.
 * In Australia:
 * March 2, 2005: Warner Home Video releases The Flintstones: The Complete First Season on DVD.
 * In the United Kingdom and Ireland:
 * November 7, 1988: The Video Collection releases The Flintstones: Love Letters on the Rocks on VHS.
 * November 7, 2005: Warner Home Video releases The Flintstones: The Complete First Season on DVD.
 * June 3, 2019: Warner Home Video releases Best of Warner Bros. 25 Cartoon Collection: Hanna-Barbera on DVD.