Has anyone checked the End yet? [Ended / +Solutions]

Hello fellow puzzlers! Was anyone else board from the lack of easy puzzles while SG was down over the past 2 days? Well, I was, and thanks to a suggestion from someone in the steam group, I went so far as to make my own to pass the time!

This is a classic "Name the anime" puzzle, except with a slight twist - and that twist is the common element that all of these screenshots share (once figured out, may make things easier). In addition to that common element, there is also one other trait that they all share that will make the entire puzzle trivial. However, in order to spice things up a bit, the images have been slightly altered Don't hate me!

Puzzle: Name that Anime!
Deadline: Wednesday, October 21st, 12:00AM EST
Rules: Obviously don't give out answers, and don't share the giveaway link. If you want to help your fellow puzzlers with hints, however, you are free to do so.
Giveaway: They Bleed Pixels
Bonus reward: Anyone who makes the top 10 on the ITH leaderboard will be added to my whitelist (if your ITH name doesn't match your SG name, post what it is before solving)

Also, for those already on my whitelist, here is a little something for you ^_^

Hints:

Since I forgot to reserve the first post, I'll post hints here, should they be needed

Oct 19, 12am: Hint #1: All screenshots come from anime Ending/Openings (19 endings, 1 opening).
Oct 19, 12pm: Hint #2: All shows come from a list of exactly 101 102 TV-Anime
Oct 20, 12am: Hint #3: Individual hints have been added to ITH.

Solutions:

http://www.itstoohard.com/puzzle/kUr5qZZA/z9uJi3P9

I dropped a couple of hints in the comments, as well as on ITH, but the big hint was Hint #2, which stated that all the shows came from a list of exactly 102 TV-animes. Doing a google search for "AuthenticZac Anime" would have brought you to my own personal myanimelist profile, where, you would see that I have exactly 102 TV-anime listed (OVA/Movies not counted). Finding 20 specific anime out of a list of only 102 would have narrowed down the search considerably (And actually, the list is closer to 85 once you eliminate duplicate entries for shows like Major/Naruto/Ippo for their multiple seasons)

And it wouldn't be a proper anime-ending puzzle without sharing the theme music from which the screenshots came from, so here are all 20!

01-Super step by ammoflight The anime ED to this isn't on youtube
02-To All Tha Dreamers by SOUL'd OUT
03-Stand Up! ED by ED group The anime ED to this isn't on youtube. The closest is this parody version using Attack on Titan characters
04-Papepipu Papipepu Papepipupo by Sasaki Nozomi
05-BACCHIKOI by DEV PARADE
06-Spice By Tokyo Karankoron
07-Buchikome by Shikuramen
08-Gr8 Story by SuG
09-Hyouriittai by YUZU
10-FAITH by Ruppina
11-RunOver by Koike Joanna
12-Romatikku Ageru Yo by Ushio Hashimoto
13-Twilight Star by Megamasso
14-Stay Beautiful by Diggy-MO
15-Uso by SID
16-With You With Me by 9nine
17-Sayonara bye bye by Matsuko Mawatari
18-Namae no nai Kaibutsu by EGOIST
19-ZERO!! by Minami Kuribayashi
20-LIVE for LIFE by Aimi