The Flintstones

The Flintstones (1960 – 1966)

1960 • 6 seasons • Animation, Comedy • TV-G

On August 9, 2026

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28.0 Attention Score

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Episode 21 — Love Letters on the Rocks

Season 1 • The Flintstones

Released: 1961-02-17 • Animation/Comedy/Family

62%

User score

Jealous Fred's discovery of a love poem that was sent to Wilma prompts him to hire Bedrock's top detective Perry Gunite, to find out who the home-wrecking poet is. Gunite's investigation mistakenly points to Barney. Fred plans revenge against his friend until Wilma reminds her husband that he had written the poem himself years earlier during their courtship.

Where to Stream Episode 21

Season 1 · Episode 21 · Streaming in USA

JustWatch

Episodes

Episode 1
The Flintstone Flyer
1960-09-30

Episode 2
Hot Lips Hannigan
1960-10-07

Episode 3
The Swimming Pool
1960-10-14

Episode 4
No Help Wanted
1960-10-21

Episode 5
The Split Personality
1960-10-28

Episode 6
The Monster from the Tar Pits
1960-11-04

Episode 7
The Babysitters
1960-11-11

Episode 8
At the Races
1960-11-18

Episode 9
The Engagement Ring
1960-11-25

Episode 10
Hollyrock, Here I Come
1960-12-02

Episode 11
The Golf Champion
1960-12-09

Episode 12
The Sweepstakes Ticket
1960-12-16

Episode 13
The Drive-in
1960-12-23

Episode 14
The Prowler
1960-12-30

Episode 15
The Girls' Night Out
1961-01-06

Episode 16
Arthur Quarry's Dance Class
1961-01-13

Episode 17
The Big Bank Robbery
1961-01-20

Episode 18
The Snorkasaurus Hunter
1961-01-27

Episode 19
The Hot Piano
1961-02-03

Episode 20
The Hypnotist
1961-02-10

Episode 21
Love Letters on the Rocks
1961-02-17

Episode 22
The Tycoon
1961-02-24

Episode 23
The Astra' Nuts
1961-03-03

Episode 24
The Long, Long Weekend
1961-03-10

Episode 25
In the Dough
1961-03-17

Episode 26
The Good Scout
1961-03-24

Episode 27
Rooms for Rent
1961-03-31

Episode 28
Fred Flintstone: Before and After
1961-04-07

Information

Episode air date	17.02.1961
Episode runtime	25 min
Episode rating	6.20
Genres	Animation / Comedy / Family
TMDB series rating	7.4
IMDb series rating	7.5
Series status	Ended
Age rating	0+
Country	US

Trailer

Cast

Alan Reed
Fred Flintstone (voice)

Mel Blanc
Barney Rubble (voice)

Jean Vander Pyl

Jean Vander Pyl
Wilma Flintstone (voice)

Gerry Johnson
Betty Rubble (voice)

Don Messick
Bamm-Bamm Rubble (voice)

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