All data obtained from @SonOfTheBronx on Twitter:
March 21st, 2020
| Time | Show | Ratings | A18-49 |
|---|---|---|---|
| 11:30pm | My Hero Academia | 718,000 | 444,000 |
| 12:00am | Sword Art Online | 552,000 | 375,000 |
| 12:30am | Demon Slayer | 552,000 | 375,000 |
| 1:00am | Food Wars | 522,000 | 363,000 |
| 1:30am | Black Clover | 482,000 | 338,000 |
| 2:00am | Jojos Bizarre Adventure | 366,000 | 257,000 |
| 2:30am | Naruto Shippuden | 308,000 | 208,000 |
March 23rd, 2019
| Time | Show | Ratings | A18-49 |
|---|---|---|---|
| 11:00pm | Dragon Ball Super | 895,000 | 524,000 |
| 11:30pm | Boruto | 602,000 | 358,000 |
| 12:00am | My Hero Academia | 505,000 | 315,000 |
| 12:30am | Sword Art Online | 406,000 | 251,000 |
| 1:00am | Megalobox | 378,000 | 235,000 |
| 1:30am | Jojos Bizarre Adventure | 357,000 | 221,000 |
| 2:00am | Black Clover | 343,000 | 222,000 |
| 2:30am | Hunter X Hunter | 315,000 | 201,000 |
| 3:00am | Naruto: Shippuden | 335,000 | 206,000 |
| 3:30am | Attack on Titan | 255,000 | 156,000 |
If you want more data, you can check my spreadsheet here;. That will have further data including per year difference and A18-49 differences.
Let us know what you think in the comments below about the ratings.