I think its the episode titled "Gotta See Gotta Know...Kakashi Sensei's True Face"
I also like the 3rd episode where Naruto, Sasuke, and Sakura tried to get Kakashi's bells.
Or if your talking about shippuden...Kakashi Gaiden is great!
In case you have not figured it out...I Love Kakashi!! ;)
the BEST episode is episode 192 wher naruto pisses on ino.
Naruto Episode 46
Naruto Shippuden Episode 114
you can watch naruto episode at narutoship.com , this website also shows bleach episode and some other anime .
The last naruto episode (not shippuden) is Naruto Episode 220
episode 58 its really naruto shippuuden episode 58!
go to www.narutoget.com for the best quality free naruto episodes.
Naruto Episode 80
episode 60 in naruto
Naruto learns to use Wind Release: Rasenshuriken in Naruto Shippuden episode 88. The episode is called "Wind Release: Rasenshuriken!"
I am thinking that it is Naruto episode 79 the last episode of 4th season.
naruto episode 16, naruto SHIPPUDENepisode 42, naruto episode 62.