There have been individuals who have suggested that Lee Duncan's dogs were not used in the filming of the series The Adventures of Rin Tin Tin. There were 164 Episodes in the five seasons of the series
That misconception is easily proven to be not true simply by watching the various episodes and knowing the four dogs who were used in the series, three of which Duncan owned. Below you will see photos featuring the major identifying factors, primarily head appearance and color, in the four dogs, Rin Tin Tin II, Rin Tin Tin IV, Hey You and JR.
Rin Tin Tin II and Rin Tin Tin IV were Silver Grey in color, Hey You and JR were Sable Grey in color.
This is a Link to YOU TUBE of The Adventures of Rin Tin Tin episodes. Watch them and you can clearly see when the dogs change, example, S1-EP1 on the You Tube page JR is used in the opening scene and in the sitting cute with the cavalry scene, while Rin Tin Tin IV is used jumping off the building onto the wagon, and Rin Tin Tin II in an attack scene and so on. Anoterh key factor is look at the age of the dogs.
Rin Tin Tin II
Life Magazine, June 1958 - Notice damage to Rin Tin Tin II ear
The age, date of birth and parents are unknown. His is thought to be Flame, a movie dog star in his own right.
Flame Jr. date of birth and pedigree are unknown.
Animal trainer Bob Blair said that The Adventures of Champion was the first TV show he worked on as he helped with Rebel, the German shepherd. Rebel was played by JR and handled by Frank Barnes.
Blair said the JR also appeared in
The Adventures of Rin Tin Tin.