Father and Son, the Broken Crest

is episode 130 of the original Naruto anime.

Synopsis
As Sasuke's recollection of his childhood continued, Itachi's standing in the clan began to falter due to his apparent turning against them. As such, Sasuke's father started taking a more active interest in Sasuke's development. To give Sasuke proper membership into the clan, his father taught him the Great Fireball Technique, which Sasuke rapidly mastered. As Sasuke and his father spent more time together, his father told him not to follow in Itachi's footsteps, the former prodigy having lost the clan's confidence. With his father's recognition, Sasuke put even more time into his training, determined to become better than Itachi.