You can screen record the content:
Same like how you screenshot pictures, you can screen record any videos that you need. For instance; if you are a windows user, you will have to click windows + alt + R keys together to screen record. Or just press windows + G, then you will have to click from the left side video recording option.
Even by using this small technique, you can save the cartoon content that you have seen in the Kim cartoon.
Also visit:
https://expertsbadge.puzl.com/_news/Updated-List-of-Kimcartoon-Alternative-Website/324309
http://www.apsense.com/article/kimcartoon-alternatives-site-list-for-you.html