Getting videos onto ipad/iphone/ipod

So, I have a series of videos that are in mp4 format and are inserted into itunes and are rigged to play using itunes. I can find the videos in itunes under home videos, and they play in itunes with no difficulties.

I recently upgraded my phone from the 4 to the 5s. I also own an ipad mini, an ipod touch, and an ipod classic. I was able to put videos on my iphone 5s really easily, and they are fully functional. However, this is not where I want to store the video as I do not wish to use my active phone, potentially draining the battery and leaving myself without access to a phone. I want the videos on my other devices.

I have updated all of my devices. I cannot seem to get the videos on my other devices. Why can I not get the videos on my other devices? WHY DOES APPLE NEED TO MAKE THIS SO BLOODY DIFFICULT?!!!