The Kiss of Death episode you are referring to begins in Naruto Shippuden episode 60 and continues in episode 61. You can watch these episodes online at narutoget, the episodes are avaliable in both subbed and dubbed.
Note: all Naruto and Naruto Shippuden episodes at this website are all free to watch for everyone.
There is no first episode that Naruto and Hinata kiss because they don't kiss.
No where. Naruto and Sakura never kiss.
Sasuke
There was never a filler episode in Naruto or Shippuden that he kissed her ever.
Sakura doesn't love Naruto so why would she kiss someone she doesn't even like but in shippuden episode 206 she told Naruto she loved him in order to get him to come back to the leaf village but he saw threw her bulshitting she loves Sasuke but Sasuke doesn't even like sakura its all complicated the sires would be great is naruto and hinata ended up together and sasuke and sakura end up together but that's my opinion
There is no first episode that Naruto and Hinata kiss because they don't kiss.
All the couples kiss in the final Naruto episode. They declare for each other and kiss. This happens in the final episode.
Naruto and Sasuke kiss in original episode 3 and Shippuden episode 194. The sceen when Sakura gives Naruto the kiss of life isn't anime yet.
They kiss in the final episode.
Episode 123
No where. Naruto and Sakura never kiss.
Their is an episode intitled "The Death of Naruto" (episode 165 season 4 on hulu).
At the last Eposode of Naruto Shuppden
No
in one episode they do
No
Sasuke